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1 Security Information Washington, D.C. 11 December 1951 JOINT DAILY SITREP NO. 405 (Maps attached) From 0700/10 (EST) to 0700/11 (EST) From 2100/10 (Korea) to 2100/11 (Korea) 1. Weather: During the period 101800 to 111800, there were occasional scattered low clouds throughout Korea. Otherwise, weather was clear. Visibility was restricted in west-central sector due to fog most of the night and early morning. Maximum battle area temperature, 50 degrees; minimum 30. Forecast; A cold front is expected along the Yalu River by 0900 (KT), reaching the Seoul area by 1800 (KT). Scattered low clouds will become broken along the west coast by noon. Multilayered clouds are expected with- in the frontal zone, ceilings will occasionally be reduced to 1000 feet with visibility reduced to one to three miles in snow in the north, and three to five miles in rain in the south. Clearing expected to be rapid 6 hours after the frontal passage. (FEAF) (SECRET) 2. Enemy Situation: Light probing attacks of up to platoon size were made against UN Posi- tions in the X US and I ROK Corps. Mortar and artillery fire was moderately heavy on 7th US Division positions north of Yanggu. Twelve SP guns, two anti-tank guns, and a. possible tank were observed opposite I US Corps posi- tions in the western sector. The adjusted total of vehicle sightings for 9-10 December is 643g of which 470 were southbound. (FECOM) (SECRET) 3. United Nations Situation: ARMY: a. General: UN forces repulsed scattered energy probing attacks and continued to engage small groups in patrol clashes. UN artillery fired on numerous hostile gun and personnel targets across the front. (FECOM) (SECRET) DECLASSIFIED E.O. 12065, Sec. 3-402 DOD Directive 5100.30, June 18, 1979 HL Date 2/28/81 By NLT- Security Information