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1 Washington, D. C. 31 July 1952 JOINT STTREP NO. 521 (Maps attached) From 0700/28 (EDT) to 0700/31 (EDT) From 2100/28 (Korea) to 2100/31 (Korea) 1. Weather: Weather during the period 28-30 July consisted generally of broken to low clouds with rain and fog restricting visibility to 1-3 miles. Battle area temperatures ranged from 69 to 72 degrees. (FEAF) (SECRET) 2. Enemy Situation: Enemy activity diminished, with ground operations hampered by poor weather during the period. The principal action occurred in the west sector where, during the night 28-29 July, an enemy company seized outpost positions in the 3d US Division sector, northwest of Yonchon, and repulsed several friendly counterattacks during the morning of 29 July. Elsewhere across the front, enemy activity was limited to minor probing attacks of squad and platoon strength. Scattered groups of enemy,up to platoon size, opposed friendly raider groups and patrols, with engagements of up to six hours. No enemy activity was reported in 10 of the 15 UN Division sectors on 30 July. During the period of this report, hostile mortar and artillery fire totalled 6, 222 rounds, of which 2, 828 fell in the I US Corps sector. The total mortar and artillery fire for the week ending 30 July(inclusive) was 20, 214 rounds, of which 9, 327 fell in the I US Corps sector. Sightings of enemy vehicle traffic totalled 1, 940, of which 1, 220 were southbound. Vehicle sightings were negative on the last two days of the period, owing to poor weather conditions. (FECOM) (SECRET) 3. United Nations Situation: ARMY: United Nations elements in the west sector counterattacked on 29 and 30 July and regained outpost positions northwest of Yonchon which had been taken by the enemy during the night of 28-29 July. Elsewhere across the front, UN forces continued aggressive patrol and raider operations against generally light opposition and repulsed scattered minor probing attacks. (FECOM) (SECRET) DECLASSIFIED 12065, Sec. 3-402 in DOD Directive E.O. 5100.30, June 18, 3/7/81 1979 Date By NLT-