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H-015-2: Guadalcanal Campaign—Battle of Rennell Island and Operation Ke

H-Gram 015, Attachment 2
Samuel J. Cox, Director NHHC
February 2018 

Most narratives of the Guadalcanal campaign tend to peter out after the Battle of Tassafaronga and jump to the final Japanese defeat and evacuation in February 1943. The reality is that the Japanese navy continued to fight with extraordinary audacity and tenacity, on several occasions inflicting serious losses to the U.S. Navy. The U.S. Navy continued to learn, albeit sometimes slowly, from its experience in night surface combat around Guadalcanal, aided by increasingly advanced technology, including airborne radar and variable-time (VT) fuzed anti-aircraft ammunition. In many cases, U.S. Sailors displayed incredible valor in the final months of the campaign, especially the U.S. PT-boats operating from Tulagi. Most of these actions have now faded into relative obscurity.

During the Battle of Tassafaronga on the night of 30 November–1 December 1942, the U.S. Navy, at great cost, had thwarted the Japanese navy’s first attempt to resupply Japanese troops on Guadalcanal using the new floating supply-drum method. The Japanese tried again on 3 December, fighting off a 15-plane long-range U.S. air attack from Guadalcanal at dusk and proving that radically maneuvering high-speed destroyers were very difficult targets to hit. The ten destroyers dumped 1,500 drums of supplies just off Guadalcanal, but at dawn, strafing from U.S. aircraft sank most of the drums before Japanese troops could retrieve them.

The Japanese quickly adjusted their drum tactics and tried again with 12 destroyers on 7 Dec, under the command of Captain Sato, who had been so effective at Tassafaronga. Thirteen Marine SBD dive bombers attacked the Japanese destroyers at dusk, damaging one destroyer that had to be towed back by another, at the cost of the squadron skipper, Major Joseph Sailor, USMC. Sato pressed on with the remainder of his force and was met by eight U.S. PT-boats (including PT-109, not yet under the command of future President John F. Kennedy) off Savo Island. In the night battle that followed, which included PT-59 and the Japanese destroyer Kurushio exchanging machine-gun fire at a range of 100 yards, the U.S. PT-boats launched numerous torpedoes, which did not hit, but successfully drove off two attempts by Sato’s destroyers to get close enough to Guadalcanal to deliver their drums. By driving off the Japanese, without loss, the PT-boats accomplished the same thing that had cost the U.S. Navy four heavy cruisers sunk or crippled the week before, one of the best showings by PT-boats in the entire war.

The next day, the Japanese navy announced to the Japanese army that it was terminating “Tokyo Express” supply runs effective immediately because continued losses of ships at the rate since November would preclude the Imperial Navy from being able to achieve victory in the great “decisive battle” that their Mahanian doctrine called for. The Japanese army, whose troops on the island were literally starving, was not amused, especially since they had been goaded by the navy into committing wave after wave of troops to the island in what was supposed to have been a definitive campaign. In the face of vociferous army protests, the Japanese navy agreed to one more Tokyo Express run to Guadalcanal. Relations between the Japanese army and navy, never good to begin with, only became more poisonous. Shortly after, U.S. Navy transports landed three regiments of the U.S. Army’s 25th Infantry Division on Guadalcanal (bringing U.S. troops on the island to near 50,000, while the Japanese could muster well less than 10,000 fit to fight.) On 9 December, Major General Alexander M. Patch, U.S. Army, relieved Major General Alexander Vandegrift, U.S. Marine Corps, in command of U.S. Forces on Guadalcanal. Most of the Marines of the 1st Division, exhausted by months of combat with Japanese and jungle diseases, were withdrawn.

The Japanese continued resupply efforts by submarine that had begun the previous month, making three deliveries in the first week of December, before U.S. Navy radio intelligence pinpointed the schedule for the next delivery. In the pre-dawn hours of 9 December, the Japanese submarine I-3 surfaced right between PT-44 and PT-59 waiting in ambush, and was hit and sunk by a torpedo from PT-59 (Lieutenant Jack M. Searles, commanding) which actually worked. Searles was awarded the Navy Cross. The Japanese suspended further submarine supply runs.

The last Tokyo Express run, under the command of Rear Admiral Raizo Tanaka, commenced on 11 December with 11 destroyers, five of them as escorts. U.S. intelligence provided precise warning, and the Tokyo Express was met by 14 Marine dive bombers at long range at dusk. However, no hits were achieved. Once again, the U.S. PT-boats were waiting (five of them). This time, the Japanese managed to get 1,200 drums into the water just off shore, but as they were withdrawing, PT-37, PT-40, and PT-48 all launched torpedoes, one of which struck Tanaka’s flagship, the destroyer Teruzuki, knocking the admiral unconscious. As PT-44 and PT-114 closed in on the flaming Japanese destroyer to finish off the kill, the destroyers Kawakaze and Suzukaze found the range on PT-44  (Lieutenant Frank Freeland, commanding), hitting her multiple times and sinking her. Only two of PT-44’s crew of 11 survived. At 0315 on 12 December, the Japanese gave up trying to save Teruzuki and scuttled her. Although the mission was a “success,” only 220 of 1,200 drums actually made it to shore, at the cost of a destroyer.

Beginning in mid-November, the Japanese attempted to secretly build an airfield at Munda, on the island of New Georgia about 170 nautical miles up the Solomon Islands chain to the northwest of Guadalcanal (which would considerably shorten the 500–nautical mile flight from Japanese bases at Rabaul). Despite elaborate deception efforts, U.S. aerial reconnaissance and Allied coast watchers detected the construction activity. Throughout early December, U.S. aircraft from Guadalcanal repeatedly bombed the incomplete airfield, but construction continued. The Japanese suffered a major setback when the U.S. submarine Seadragon (SS-194) torpedoed the transport Nankai Maru carrying construction troops intended to build an airfield on the island of Kolombangara, just to the northwest of New Georgia. While attempting to assist the immobilized transport, the destroyer Uzuki collided with the other ship and lost power as well. Four other destroyers took the two ships in tow, but one of the destroyers was hit by an air attack in the process and was seriously damaged. By 27 December, the Japanese gave up trying to complete the airfield on Munda, but continued to fly some planes from the airstrip. Also on that same day, the Japanese resumed submarine resupply missions to Guadalcanal.

On 28 December, General Sugiyama, the chief of the Imperial Japanese Army, and Admiral Nagano, the chief of the Imperial Japanese Navy, informed Emperor Hirohito of their intent to withdraw from Guadalcanal, a decision reluctantly reached after several weeks of intense staff discussions and planning. On 31 December, Sugiyama and Nagano went back to the emperor with their detailed plan and strategy for the future conduct of the war, which the emperor approved. Hirohito had intended to issue a very rare imperial rescript, reserved only for occasions of utmost significance, when Japanese forces recaptured Guadalcanal. He informed the leaders of the army and navy that even though the battle for Guadalcanal would end in withdrawal, he intended to issue a rescript anyway to acknowledge the heroic sacrifices of his soldiers and sailors. To do such a thing for a defeat was unheard of, but the profound significance of the act in Japanese culture was deeply appreciated by all who served in the battles on and around the island.

In early January, the planning for Operation Ke, the Japanese withdrawal from Guadalcanal, commenced in earnest. As a result of war-gaming the plan, Commander-in-Chief of the Combined Fleet Admiral Isoroku Yamamoto, assessed that he would lose half the destroyers committed to the operation and probably only save one third of the Japanese army forces still alive on the island. Yamamoto built up a large force at Truk Island, including the veteran fleet carrier Zuikaku, the medium carrier Junyo, light carrier Zuiho, the two super-battleships Yamato and Musashi, the older fast battleships Kongo and Haruna, as well as heavy and light cruisers and numerous destroyers. Part of the deception included building up shipping at Rabaul to over 100 vessels. Another part included using the heavy cruiser Tone to conduct diversionary operations east of the Marshall Islands (U.S. naval intelligence correctly identified Tone’s operation, and the shelling of Canton Island by a submarine, as a diversion). In addition, Zuikaku’s 64-plane air group would operate from ashore at Rabaul. The Japanese would commit about 436 aircraft in support of Operation Ke, operating from land bases in the northern Solomons, and a few float planes from sea bases in the central Solomons. The Japanese also changed their communications codes and call signs on 1 January, which didn’t do much to prevent U.S. Intelligence from fairly accurately detecting the impending operation and the units involved. The true Japanese intent, however, remained unknown.

U.S. naval intelligence was aware of the Japanese build-up of ships at Truk and Rabaul, and aircraft, troops and transports at the latter, and assessed them as preparations for yet another Japanese attempt to re-take Guadalcanal. In anticipation of the Japanese operation, Admiral Nimitz essentially committed the entire operational capability of the Pacific Fleet to countering the expected Japanese offensive. By the end of January, these forces included the carriers Enterprise (CV-6) and Saratoga (CV-3) with about 160 aircraft; the new fast battleships Washington (BB-56,) North Carolina (BB-55,) and Indiana (BB-58); and 13 cruisers and 45 destroyers, all assigned to Vice Admiral William Halsey. Even four old battleships (including repaired Pearl Harbor survivors) and four new, but slow and small escort carriers (with about 178 aircraft) released from the Atlantic at the conclusion of Operation Torch were committed to Halsey. Including land-based aircraft, the Allies mustered about 570 planes, including an growing number of radar-equipped PBY flying boats, the famous “Black Cats” of VP-12, which gave the U.S. an increasing advantage in night aerial reconnaissance. Throughout late January, intelligence indicators of a major impending Japanese operation poured in, the purpose of which the Japanese successfully kept a secret.

On 30 Dec, the Japanese resumed Tokyo Express runs to Guadalcanal, with destroyers fitted with additional 13-mm machineguns for anti–PT-boat defense, and float planes from cruisers would provide air cover. Ten destroyers under Rear Admiral Tomiji Koyanagi commenced their run, with the usual dusk encounter with U.S. strike aircraft from Guadalcanal, alerted by coast watchers and radio intelligence that the Express was coming again. One destroyer was damaged and turned back with another as escort, and several U.S. aircraft were shot down. Eleven PT-boats met the Express in the darkness near Savo Island, but the covering Japanese float planes actually had an easy time detecting PT-boat wakes even at night, and successfully drove the PT-boats off. Koyanagi’s destroyers succeeded in getting about five days’ worth of supplies ashore.

After covering the arrival of seven troop transports to Guadalcanal, at 2000 on 4 January 1943, a force of three light cruisers, Nashville (CL-43), St. Louis (CL-49), and Helena (CL-50), and two destroyers, Fletcher (DD-445) and O’Bannon (DD-450,) under the command of Rear Admiral Walden L. Ainsworth, proceeded northwesterly up the Solomon Island chain from Guadalcanal, a first for U.S. Navy surface forces. Their mission was to conduct a night bombardment of the Japanese airstrip at Munda. Ainsworth’s planning was meticulous. A radar-equipped Black Cat PBY scouted ahead of the force. Other PBY’s embarked spotters for the bombardment ships, while cruiser-launched float planes provided flank reconnaissance (a much more valuable use than catching fire on the catapult after the first salvo, which had been somewhat the norm). The submarine Grayback (SS-208) performed service as a navigational marker in the poorly charted and treacherous waters around New Georgia. Commencing at 0102 on 5 January, the three light cruisers and two destroyers poured 4,000 rounds of 6-inch and 5-inch shells onto the airstrip. It took the Japanese two hours to get it operational again in the morning. The Japanese air counter-attack caught Ainsworth’s bombardment group as it rendezvoused with other Allied cruisers off Guadalcanal and was in the vulnerable position of recovering float planes. Japanese dive bombers scored near misses on the light cruiser USS Honolulu (CL-48) and hit and damaged the New Zealand light cruiser HMNZS Achilles, knocking out her number three turret. Two dive bombers were shot down, one of which was the first enemy aircraft downed by the new VT-fuzed 5-inch anti-aircraft shell. The “variable-time” fuze had been developed in great secrecy, and used a battery-powered radio transmitter that detonated the shell when it sensed it was in lethal range of the target aircraft. The innovation greatly increased the effectiveness of 5-inch guns in an anti-aircraft role.

On 11 January, eight Japanese destroyers commenced another Tokyo Express run, this time successfully avoiding coast watcher observation, so there was no traditional dusk attack by Guadalcanal-based aircraft. Nine PT-boats engaged the Japanese that night off Guadalcanal. As PT-43 attacked, one of her torpedo tubes malfunctioned, causing a powder flash that immediately drew Japanese fire, which killed three and disabled the boat. PT-43 had to be scuttled the next day by a New Zealand corvette to keep it from drifting into Japanese-held areas. PT-40 and PT-112 launched torpedoes, both claimed a hit on the destroyer Hatsukaze (which was hit by one torpedo), but Japanese counter-fire sank PT-112, although her crew survived. The damaged Hatsukaze made it to safety, but only about 250 supply drums reached shore.

Poor weather protected the next Tokyo Express on 14 January, and the Japanese float planes providing cover off Guadalcanal beat off the U.S. PT-boats. However, aircraft from Guadalcanal caught the nine destroyers on their return transit at dawn and damaged two destroyers for the loss of several aircraft. Attacks by B-17 bombers on the destroyers were typically ineffective, although their heavy defensive armament shot down five of the ten Japanese float planes trying to protect the destroyers.

On 20 January, a Japanese long-range four-engine Emily flying boat attacked Espiritu Santo, far in the Allies’ rear area, a strike that happened to coincide with the arrival on Espiritu Santo of a U.S. party including Secretary of the Navy Frank Knox and Nimitz. The next night, the same party was subject to an unusually intense nighttime raid on Guadalcanal by nine Betty bombers. There is no evidence that Japanese intelligence had advance indication of the senior official party’s itinerary, but the attacks did provoke the U.S. Navy to take a major round turn on communications security practices.

In late January, U.S. radio intelligence detected aviation-related messages coming from Kolombangara, and subsequent aerial photographic reconnaissance detected an airfield under construction and a staging area for supply barges. Halsey directed Rear Admiral Ainsworth to bombard the new airfield, which necessitated a night transit past New Georgia and into the confined Kula Gulf. American aircraft bombarded Munda on 23 January to divert attention, but Japanese scout aircraft detected Ainsworth’s force in the late afternoon. Ainsworth changed course as if he was headed to bombard Munda again, which fooled the Japanese. This was fortuitous, because the Japanese had a surprise in store for Ainsworth: the G4M Betty bombers of the elite 701st and 705th Air Groups, which had developed effective tactics for conducting night aerial torpedo attacks. The Japanese were frustrated when they found nothing off Munda. Meanwhile, Ainsworth’s cruisers had resumed course for the Kula Gulf under cover of darkness. Supported by a Black Cat PBY, the light cruisers Nashville, Helena, and destroyers Nicholas (DD-449), De Haven (DD-469), Radford (DD-446), and O’Bannon opened fire on the airfield on Kolombangara at 0200 on 24 January. This time, the 3,500 rounds of 6-inch and 5-inch shells did significantly more damage than the previous bombardment of Munda. Moreover, as the Japanese commenced repairs at dawn, a 59-plane strike from Saratoga’s air group (staging from Guadalcanal) plastered the airfield.

On 25 January, the Japanese navy launched the first massed daylight air raid on Guadalcanal since November, this time with land-based aircraft including 18 Betty bombers escorted by 76 Zero fighters (although 18 Zeroes had to abort due to weather). The Bettys were intended as bait and turned away before 53 Zeroes rolled in for a sweep over Guadalcanal, against only 14 U.S. fighters that managed to scramble airborne. Somewhat surprisingly, the U.S. lost no aircraft, most likely due to the poor weather conditions that disrupted the Japanese plan.

The next day was the Imperial Japanese Army’s turn (a first in the southern Solomons) and nine Kawasaki Ki-48 Lily twin-engine bombers and at least 74 Nakajima K-43 Oscar fighters of the 6th Air Division, preceded by two Mitsubishi Ki-46 Dinah reconnaissance aircraft, attacked Guadalcanal. In the air battle that followed over the island, the Japanese shot down seven U.S. aircraft for a loss of six Oscars. A third mass air attack was scheduled for 29 January, but was postponed.

Provided with detailed information derived from radio intelligence, the Royal New Zealand Navy corvettes Kiwi and Moa waited in the designated location for a Japanese submarine to surface off Guadalcanal at 2100 on 29 January. Kiwi gained sonar contact on the I-1 at 2105, just as she raised her periscope, and depth-charged her to the surface at close range. Kiwi then rammed the submarine, and raked the boat with machine-gun fire, killing the commanding officer and setting the supply barges embarked on the submarine’s aft deck on fire. Japanese Army troops embarked on the sub began jumping in the water. I-1’s gunners got off two rounds from her deck gun before being cut down. Kiwi backed off and rammed I-1 a second, and then a third time, forcing the submarine under as her crew fired rifles at the corvette. One petty officer armed with a sword leaped to board the Kiwi, but only succeeded in grabbing a handhold on her side (he was subsequently taken prisoner). Up to this point, Moa had been unable to engage because Kiwi and I-1 were locked in close combat for ninety minutes. I-1 then attempted to run herself aground, but sank in shallow water. The Japanese survivors desperately tried to destroy and bury classified material with only limited success. Japanese aircraft subsequently tried to bomb the I-1 into deeper water, which didn’t work. U.S. Navy divers later recovered about 200,000 pages of secret documents and cryptographic material. It was an intelligence bonanza, although the material was mostly useful in reconstructing past Japanese operations and of limited utility in predicting future actions. Even then, in June an Australian journalist blew the cover on the operation, confirming to the Japanese that a significant amount of sensitive material had been captured by the Americans.

By 29 January, a major U.S. Navy force was operating south of Guadalcanal in anticipation of the Japanese “offensive.” This force included Task Force 18, under the command of Rear Admiral Richard C. Giffen, recently arrived from operations in the Atlantic. Among other things, Giffen took a dim view of Halsey’s relaxed uniform standards for the fleet, insisting on wearing his tie in the tropics, which may say something. TF-18 consisted of the heavy cruisers Wichita (CA-45), Chicago (CA-29), and Louisville (CA-28) cruising in line-ahead, with the new-construction light cruisers Montpelier (CL-57), Cleveland (CL-55), and Columbia (CL-56) in a line-ahead formation to port. Giffen stationed his six destroyers in a semi-circle two miles ahead of his two columns of cruisers. He was subsequently criticized for his choice of formation, which was optimized for defense against submarines (a known and frequent threat in that area) and for rapid response to a surface threat, which is what Giffen was expecting. It wasn’t very good for anti-aircraft defense, but to be fair to Giffen, no U.S. force had been subject to a major night air attack to that point in the war. Giffen’s orders from Halsey were to proceed to a rendezvous point off Guadalcanal to join up with four destroyers of the “Cactus Striking Force.”

After 1900, radar on the Wichita detected major air activity. The Americans didn’t know it at the time, but this air activity was the new specialized G4M Betty groups trained for night torpedo attacks, and the two formations were circling around to the south of TF-18 so that they could attack from the eastern (darker) sector. At 1919, 16 Bettys of the 705th Air Group commenced their runs. The destroyer Waller (DD-466) detected the attacking planes in the dark and opened fire. One Betty crashed astern of Chicago, with its flames serving as a beacon. Louisville was possibly hit by a torpedo that failed to explode; otherwise, neither the U.S. ships nor Japanese aircraft suffered additional loss or damage. Determined to arrive at the rendezvous point on schedule, Giffen did not alter the formation’s course and speed after the attack, and he even stopped zig-zagging. As a result, the second group of Betty bombers had no problem finding Giffen’s force. The first group of Bettys appeared to have ignored much of their training in a rush to attack. The second group of 15 Bettys took a much more deliberate approach, with lead elements dropping floating white flares parallel to the U.S. cruiser columns, while other colored red and green floating flares were dropped in a manner that signaled the U.S. formation’s course and speed to the follow-on attackers.

At 1738, the 701st Air Group commenced its attack. As the U.S. ships opened fire, the first thing that happened was that the flashes from the 5-inch guns night-blinded the gunners on the 40s and 20s. Nevertheless, the lead Betty was hit, and, trailing flames, crashed off Chicago’s port bow, silhouetting the ship to the following Bettys. Two torpedoes hit the cruiser on her starboard side, and one torpedo hit Wichita, but failed to explode. (Fortunately the Type 95 aerial torpedo did not have the same explosive force as a Type 93 “Long Lance.”) Two torpedoes into a cruiser normally would have been fatal, but Chicago’s damage-control teams nevertheless succeeded in correcting an 11-degree starboard list, stopped the flooding, and got one boiler back on line so the ship had some power. Taken under tow in the dark of night by Louisville, by daybreak Chicago was making three knots and clearing the area to the south with the rest of the Task Force in support. Eventually the tug Navaho (AT-64) arrived to relieve Louisville. Throughout the day on 30 January, fighters from the escort carriers Suwanee (CVE-27) and Chenango (CVE-28), and from the carrier Enterprise provided cover to the task force.

Japanese search planes detected the task force’s movement to the south (which would clear the way for the first run by Operation Ke destroyers to Guadalcanal) and the presence of a cripple (Chicago) and more air attacks were launched. Coast watchers and radio intelligence provided accurate warning of the incoming strike (as well as the disposition of Japanese submarines in the area). In response to an order from Halsey to take his undamaged cruisers to a different rendezvous point, Giffen divided his force, leaving six destroyers behind with Chicago and Navaho, while the other five cruisers departed to the east (with the force fighter direction officer embarked), which greatly reduced the anti-aircraft protection for Chicago. By 1540, only four Wildcat fighters remained to provide air cover, and lacking any fighter direction from Chicago (which didn’t have a fighter direction officer) the Wildcats chose to pursue a Japanese reconnaissance aircraft, putting them 40 nautical miles out of position when 11 Betty bombers sighted Chicago at 1606. The bombers flew past the southbound cruiser to optimize their torpedo attack from ahead. This represented a potential threat to the carrier Enterprise, then 40 miles to the southeast, and fighters were vectored to defend the carrier rather than to cover Chicago. Nevertheless, two Wildcats did manage to intercept the Bettys while they were making their torpedo runs, downing three before weapons’ release, while a fourth caught fire and veered toward the destroyer La Valette, launching a torpedo before it crashed. This hit La Valette (DD-448), killing 21 U.S. Sailors, although the ship survived. Shipboard anti-aircraft gunners shot down two more Bettys, and the two Wildcats downed two more after they emerged on the other side of the task force. Nevertheless, five torpedoes hit Chicago and four exploded, compounded by the damage from the earlier two hits. The damage was so severe that Captain Ralph Davis immediately ordered abandon ship. Chicago, survivor of the debacle at Savo Island the previous August, went down at 1643 with 62 of her crew, although 1,069 were rescued. Nimitz’s report to CNO King described the result of the Battle of Rennell Island and the loss of Chicago as “especially regrettable because it might have been prevented.” Even the new VT fuzes were unable to overcome the tactical errors in force disposition and fighter direction, although the Japanese paid heavily, losing nine Bettys (and three the previous night.)

Operation Ke was scheduled to begin on 31 January, but was postponed until 1 February. Twenty-one Japanese destroyers of the “Reinforcement Unit” gathered at Shortland Island to make the run to Guadalcanal. U.S. Army Air Force B-17s bombed the gathering that morning with no effect, but three of the B-17s were shot down as there were many more Japanese fighters in the area than expected. Japanese army bombers attacked Guadalcanal that morning with minimal effect. However, on the afternoon of 1 February, a Japanese navy strike of 13 Val dive bombers and 40 Zero fighters arrived over Guadalcanal. The U.S. destroyers De Haven and Nicholas had provided escort to the destroyer-transport Stringham (APD-6) and six tank landing craft (LCTs), which had landed U.S. Army troops behind Japanese lines on Guadalcanal. As the Japanese strike came in, fighter direction on Guadalcanal vectored fighters to defend the destroyers Radford and Fletcher, at a different (and less vulnerable) location, leaving De Haven and Nicholas unprotected. There was also initial uncertainty aboard De Haven as to the identity of the dive bombers, since Vals had not appeared over Guadalcanal for weeks. De Haven was making only 15 knots, and her skipper had initially refused permission to open fire until the identity of the aircraft was certain. Six Vals dove on the destroyer at 1443 with a stunning display of accuracy. The first bomb hit amidships, the second bomb hit just aft of the bridge, and the third bomb detonated the forward magazine, blowing the ship in two and sinking her almost immediately with 167 of her crew (146 survived), including her commanding officer, Commander Charles E. Tolman. Nicholas barely avoided the same fate by virtue of radical high-speed maneuvers resulting in multiple near misses that damaged the ship and killed two crewmen. The Japanese lost five Vals and three Zeros in the attacks.

By the time the air attacks were over, 20 Japanese destroyers were steaming at high speed toward Guadalcanal, under the command of Rear Admiral Hashimoto. A coast watcher sighted and reported the group at 1320. Ninety-two planes from Guadalcanal launched in two groups to attack the Japanese destroyers. The result of the attack was a near miss on Hasihimoto’s flagship Makinami, which put her out of action. Hashimoto transferred his flag to Shirayuki and set back the operation by 30 minutes, at a cost of four aircraft. As the Japanese force arrived in darkness off Guadalcanal, 11 U.S. PT-boats lay in wait. At 2210, PT-48 and PT-111 attacked, each launching all four torpedoes, which failed to hit. PT-111 was hit and sunk by gunfire from the destroyer Kawakaze. Meanwhile, Japanese float planes were bombing and strafing three other U.S. PT-boats. Despite the air attacks, PT-117 closed to within 500 yards of a Japanese destroyer, firing two torpedoes at her and two more at another destroyer, without result. PT-37 also launched four torpedoes, without result, and was destroyed by Japanese gunfire with loss of all but one of her crew. As PT-124 and PT-123 made their runs, a Japanese float plane hit PT-123 with a bomb to the stern, sinking her and killing four crewmen. U.S. losses to this point were three PT-boats sunk and 15 crewmembers killed with no damage to the Japanese. Japanese float planes also located and dropped flares and bombs on the three remaining destroyers of the “Cactus Striking Force”(now minus De Haven). None of the bombs hit, but any chance that the U.S. destroyers might surprise the Japanese was lost. The Japanese destroyers were not interested in an engagement, and none occurred, which was probably just as well since three U.S. destroyers against 18 Japanese destroyers probably would not have had a happy ending.

The true nature of the Japanese operation still remained unknown to the U.S. as Hashimoto’s destroyers evacuated 4,953 Japanese soldiers from Guadalcanal. Following the melee with the PT-boats, the Japanese destroyer Makigumo suffered a massive explosion, probably due to striking a mine. U.S. destroyer-minelayers had recently laid 300 mines. The destroyer Yugumo took off Makigumo’s crew and scuttled her with torpedoes. Six SBD Dauntless dive bombers had launched from Guadalcanal at midnight in an attempt to conduct a night strike on the Japanese destroyers, but achieved no hits.

On 4 February, 20 Japanese destroyers commenced a second Operation Ke run. Seventy-four aircraft from Guadalcanal attacked, damaging the destroyer Maikaze, which had to be towed back to port by another destroyer, at a cost of 11 U.S. aircraft. Hashimoto’s flagship, Shirukaze suffered an engine casualty and he again had to transfer his flag, this time to Kawakaze. This time, no U.S. PT-boats opposed the Japanese, having been mauled and shot most of their torpedoes during the preceding engagement. This time the Japanese destroyers successfully evacuated 3,921 troops from Guadalcanal.

The Japanese were aware of the high concentration of U.S. Navy forces in the vicinity of Guadalcanal, and Admiral Yamamoto was somewhat astonished that the first two Operation Ke missions had gone so well. There was considerable concern among the Japanese that they had pressed their luck far enough already. Nevertheless, on 7 February, 18 destroyers under Hashimoto commenced a third run. Thirty-six U.S. aircraft from Guadalcanal attacked the destroyers, but this time the U.S. strike was intercepted by 49 Zero fighters providing cover. Despite this, only one U.S. aircraft went down, and the destroyer Isokaze was hit by two bombs and had to withdraw, accompanied by another destroyer. Again, unopposed by U.S. PT-boats, the Japanese successfully evacuated another 1,972 troops, bringing the total to 10,652. Over 20,000 Japanese troops had died on Guadalcanal. Only a few small isolated units remained deep in the jungle, and some troops who could no longer walk, who stayed behind in an attempt to slow the advancing U.S. Army, with some initial success. Only on 7 February did it become apparent that only dying cripples were opposing the U.S. advance, and the sprint began. On 9 February 1943, Major General Patch announced the “total and complete defeat of Japanese forces on Guadalcanal.”

Operation Ke had greatly exceeded Japanese expectations. Nimitz admitted in his report to CNO King that not until all organized Japanese forces had been withdrawn on 8 February did the Americans realize the true nature of the operation. Nimitz gave great credit to the Japanese skill in deception and the audacity of their plan. The cost to the Japanese was the destroyer Makigumo sunk, and three destroyers damaged (when they had expected to lose half) and the total loss of about 56 aircraft. The cost to the U.S. was higher; the heavy cruiser Chicago, the destroyer De Haven, and three PT-boats sunk. The destroyer La Vallette was seriously damaged and about 53 U.S. aircraft were lost.

It would take both sides several months to recover and regroup from the horrific losses at Guadalcanal before more vicious and costly night surface actions resumed in the Central Solomon Islands in the summer of 1943.

(The best source for this phase of the Guadalcanal campaign is Guadalcanal: The Definitive Account of the Landmark Battle by Richard B. Frank, a hefty 700 pages of reading. I use Frank’s numbers throughout as they are meticulously researched using sources not available when Samuel Eliot Morison wrote volume 5 of the History of U.S. Naval Operations in World War II, The Struggle for Guadalcanal. James Hornfischer’s Neptune’s Inferno is a shorter, easier read, but still excellent.)

Published: Tue Feb 27 10:40:14 EST 2018