[164] 3/1 _SAR 7 Oct-25 Nov 50_, 14; Capt A. J. Strohmenger, ltr to Col T. L. Ridge, 16 Sep 55; 3/1 msg to 1stMar, n. t. 2 Nov 50. No difficulty was found in deciding on a water point, for tests established the purity of the water from both branches of the Imjin flowing through the perimeter. Lieutenant Duffy explained that he added chlorine only because the Marines were accustomed to the flavor. _Political Aspects of Mission_ The Marine mission had its political as well as military side. Major Edwin H. Simmons, CO of Weapons Company, was given the responsibility for defending the three road blocks of the perimeter with Weapons Company personnel. At each of them he stationed a heavy machine gun section and a 3.5″ rocket launcher section. These barriers were also ports of entry where all Korean transients were searched for weapons. When a group of 20 to 30 accumulated, they were escorted under guard to the prison stockade, just across the road from the battalion CP.[165] [165] This section is based upon LtCol E. H. Simmons interv, 4 Nov 55 and ltr, 14 Jan 56. There they were “processed” by the Civil Affairs Section, consisting of 12 Marine enlisted men under the command of First Lieutenant Donald M. Holmes and Master Sergeant Marian M. Stocks, known facetiously as the mayor and sheriff respectively of Majon-ni. Their decisions were based largely on the findings of the 181st Counter Intelligence Corps (CIC) team and the battalion S-2, Second Lieutenant Frederick W. Hopkins. The CIC specialists proved to be indispensable by contributing daily intelligence based on civilian as well as POW interrogations. As might be supposed, the question of whether a transient was an escaping NKPA soldier or a harmless peasant might have perplexed Solomon himself. But the Marines came up with a simple off-the-cuff solution. Time did not permit a lengthy screening, and each Korean was given a brief examination with the aid of interpreters. If his head was still close-cropped in the NKPA manner, if his neck showed a tanned V-line recently left by a uniform, if his feet bore the tell-tale callouses left by military footgear--if he could not pass these three tests, the transient was sent to the prison stockade as a fugitive Red Korean soldier. Now that Chinese Communist troops had been encountered both on the X Corps and Eighth Army fronts, it was all the more important that battlewise NKPA elements should be prevented from joining their new allies if Red China intervened. Some of the prisoners were admittedly NKPA veterans, weary of the war and ready to give up voluntarily. Manifestations of this spirit caused Lieutenant Colonel Ridge to send a radio request for an air drop of surrender leaflets.