During the march, the first squadron discovered a U.S. military supply depot, and while scouting the supply depot, they learned that the troops' infiltration operations had been discovered by the enemy. Liang Chen decided to let the third platoon of the reconnaissance company stay and blow up the supply base to cut off the enemy's supply first.Food and ammunition supplies.There were troops strictly guarding the Sanchuanjiang Stone Bridge on the way to Yujiangli. In order to avoid further exposing his whereabouts, Liang Chen thought of a plan.Cui Yingming led Yu Xiaoshan and Zhang Zhicheng to the stone bridge in a swagger, creating chaos on the bridge. Shui Min led people to the water bridge not far away, and used the chaos on the stone bridge to distract the South Korean troops stationed on the stone bridge and cover the troops.Cross the river smoothly.The interleaved troops successfully arrived near Okjiang-ri. Zhang Zhenghuan of the Korean People's Army who was accompanying him was from Okjiang-ri. He invited Liang Chen and his party to rest and supply supplies in the village where the guerrillas were in Okjiang-ri. Liang Chen declined politely for fear of exposing his traces. Zhang Zhenghuan was eager to return home. Liang ChenChen sent someone to secretly escort him home.