After destroying the six nationalist regiments, the communist force then turned around and badly mauled the nationalist Newly Organized 22nd Division. The failure of the nationalist counterattack resulted in complete isolation of the strategic stronghold of Meihekou (梅河口). After regrouping, the communists deployed a regiment from the 9th Division of the 3rd Column, a regiment of the 7th Division of the 3rd Column, and the 10th Division of the 4th Column to besiege Meihekou (梅河口) on May 22, 1947. After fierce fighting of 5 days, the stronghold fell into the communist hands. The defender of Meihekou (梅河口), the nationalist 184th Division, was completely annihilated, with the commander of the Division captured alive by the communists, along with more than 6,000 of his troops. Capitalizing on the victory, the communist 3rd Column begun its westward push along the railway of Siping (city), badly mauling the 2nd Division of the Youth Army, the local nationalist defender on the way. In the east, the communist Eastern Manchurian Independent Division and the communist 6th Column annihilated a regiment of the Newly Organized 38th Division at Old Master Ridge (Laoye Lin, 老爷岭) and Little Plentiful (Xiaofengman, 小丰满) regions, and thus forced the nationalist 21st Division of the 60th Army, the local garrison at Sea Dragon (Hailong, 海龙) to abandon the town and fled north. However, the fleeing nationalists were intercepted by the communist 6th Column, Eastern Manchurian Independent Division, the 1st Independent Division and 2nd Independent Division at the Peaceful River (Taipingchuan, 太平川) region. By June 3, 1947, the last remnant of the nationalist 21st Division of the 60th Army was annihilated at the town of Jichang (吉昌). By this time, the communists had managed to successfully eradicate nationalist from regions south of Jilin City and Changchun, and east of Siping (city), controlling the region between Changchun and Shenyang. The communists also gained control of important railway sections including the central section of the railway between Shenyang and Jilin, and the eastern part of the railway between Meihekou (梅河口) and Siping (city).