On this day, 78 years ago, on August 27, 1947 (July 12, 1947 in the lunar calendar), Liu and Deng's army entered the Dabie Mountains. Liu and Deng's army crossed the Longhai Railway and advanced towards the Dabie Mountains. On August 27, 1947, all Liu and Deng's Field Army crossed the Huaihe River and entered Yanchuan, Gushi and other areas at the northern foot of the Dabie Mountains, completing the thousand-mile leap forward plan. At the beginning of the month, Chiang Kai-shek mobilized 18 brigades from Shandong to launch a joint attack on Liu and Deng Field Army. Liu Bocheng and Deng Xiaoping led their troops to end their recuperation early and advance southward in disguise. At dusk on the 7th, Liu and Deng used the 11th Column and local armed forces to feign at the Yellow River Ferry, creating the illusion of crossing north. They also used five columns of the East China Field Army to clamp down on the 5th Division and other units of the Kuomintang reorganization that had returned from Luzhong. Liu and Deng led the main four columns to break out of the encirclement and advance south through Juye and Dingtao. On the 11th, the Liu Deng Field Army crossed the Longhai Road from the Yucheng area and leaped thousands of miles into the Dabie Mountains. Chiang Kai-shek quickly mobilized 20 brigades of troops to pursue in different directions, wanting to encircle and annihilate Liu and Deng field armies in the Yellow River Flood Area. The Yellow River Flood Area is more than 20 kilometers wide, covered with silt, knee-deep water, reaching the navel. On the 17th, Liu and Deng Field Army struggled through the Yellow River Flood Area. On the 18th, he crossed the Shahe River again. On the night of the 24th, under the cover of artillery fire, a unit of the Sixth Column crossed the Ru River, defeated the garrison on the south bank of the Ru River, and covered the main force of the column and the troops directly under the Central Plains Bureau and the Field Army to cross the river. Political Commissar Deng Xiaoping gave a report on the current situation and the Southern Expedition at a cadre meeting held in Beixiangdian, Guangshan County, Henan Province. Liu Bocheng's cavalry passed through the Yellow River Flood Area, where water was everywhere and people were scattered. Liu Bocheng climbed the Triangle Peak of the Dabie Mountains