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History of United States Naval Operations: Koreaby James A. Field, Jr.DEPARTMENT OF THE NAVY -- NAVAL HISTORICAL CENTER |
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| Contents Introduction Foreword Preface List of Maps List of Tables Chapters: |
Chapter 5: Into the Perimeter
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Map 4. Bombardment and Reinforcement, 614 July 1950.
Click on map for higher resolution image (216 KB). |
On the east coast 8 July saw Jamaica and Hart, now joined by Swenson, operating in the neighborhood of 37°. There, where the highway skirts the waters edge, road traffic was taken under fire, enemy shore batteries were engaged, and the British cruiser received a hit from a 75-millimeter shell which killed four and injured eight. Late in the day an alarm from Pohang brought Jamaica, Hart, and Swenson south at speed, while Mansfield broke off her escort duties and Juneau got underway from Sasebo. All five ships joined off Pohang on the morning of the 9th, but although the situation ashore was serious it was not yet out of control.
Since the threatened encirclement of the Korean forces north of the town remained only a threat, Jamaica was relieved and ordered to Sasebo, the destroyers were left to provide fire support, and Juneau proceeded to Pusan. There Admiral Higgins spent the day in conference with Korean and U.S. Army authorities, and in attempts to round up more interpreters and to obtain some solid information on the situation ashore. With evening the cruiser proceeded north again, and from 0200 to 0330 of the 10th bombarded the port of Samchok, following which she headed south to check once more on the situation at Pohang. But another more northerly mission was now brewing.
On the 10th a dispatch from ComNavFE instructed Higgins to extend his blockade as far north as practicable, and reemphasized the importance of the coastal tunnels on the Chongjin-Wonsan railroad. With these targets in mind equipment had already been procured and plans worked out to land a demolition party, and following another night on coastal patrol and a dawn bombardment of Yangyang and Sokcho, Juneau and Mansfield headed north for the region between Tanchon and Songjin.
At 2000 on the 11th the ships slowed and the demolition party, a lieutenant and four enlisted Marines and four gunners mates, led by Commander William B. Porter, Juneaus executive officer, transferred from the cruiser to Mansfield. Moving onward through the darkness the two ships reached the target area, ten miles south of Songjin, at midnight. Mansfield closed to within 1,000 yards of the beach, hove to and lowered her whaleboat, and the demolition party went on in. The landing was without incident, no opposition was encountered, and after considerable scrambling around the precipitous terrain the party managed to locate the tunnel and rig two 60-pound charges for detonation by the next train.
Although the results of the enterprise were unobserved, later reports of broadcasts by the North Korean radio seemed to indicate that the scheme had worked. By 0330 Commander Porter's party was back aboard, safe and sound, and with the distinction of having been the first members of the armed forces of the United States to invade Korea north of the 38th parallel. With their mission completed Juneau and Mansfield headed south again, and by noon of 12 July had rejoined Swenson on patrol between 37° and 38°.
The North Korean 5th Division had by this time reached south of the 37th parallel, and on the 12th the Army called for naval bombardment of the cliff road in 36°50'. On the 13th De Haven came up from Pusan with an artillery major for Admiral Higgins' staff and, although air and ground observers were still unavailable, communications were established with the 25th Division artillery detachment which was supporting the eastern front. Coastal fog on the 13th made targets hard to distinguish, but Juneau and De Haven nevertheless spent a busy day shooting at the cliff road in response to the Army request, at troops in Ulchin, at Mukho, at a railroad yard on the local line which leads back into the mountains, and at POL storage in the harbor of Samehok. The shooting was good, but the distressing ineffectiveness of 5-inch shells against roads and bridges made the arrival of 8-inch gunned cruisers from the United States appear increasingly urgent.
No requests from ashore were received on the 14th, and visibility remained poor, but with evening Juneau let off a few rounds against truck headlights on the road south of Ulchin. On the 15th, however, the cruiser and De Haven had a big day on the 20-mile stretch between 36°34' and 36°52' where the road runs generally close to the sea. For the first time an Army liaison plane was available to provide air spot, and a total of 645 rounds of 5-inch ammunition, expended against troops, shore batteries, and other targets, included a little night work against road traffic with the aid of star shell illumination. Joined hy Mansfield on the next day, Higgins covered the coast between 36°30' and 37°15', and the three ships fired 173 rounds against targets of opportunity along the highway.
The 17th found Juneau fueling at Pusan while Admiral Higgins conferred with representatives of the Korean Navy. In the absence of the flagship, Mansfield and De Haven fired more than 400 rounds at miscellaneous targets in the same coastal area, and the British returned to the business of coastal bombardlment with the cruiser Belfast and the destroyer Cossack. All this was useful, but the next day brought wholly unprecedented activity along the east coast in the form of an amphibious landing and a strike by the Seventh Fleet carrier force.