Ninety years ago today, on May 29, 1935 (April 27, 1935), the Central Red Army forcibly crossed the Dadu River. Luding Chain Bridge On May 15, Chiang Kai-shek appointed Yang Sen, commander of the 20th Army of the Sichuan Army, as the commander of the Dadu River garrison, and the south of Sichuan led his troops to the Dadu River for defense. And transferred each part of the 21st and 24th armies to his command. On the 16th, Chiang Kai-shek ordered Liu Wenhui, commander-in-chief of the Chuankang Border Guard Army and commander of the 24th Army, to complete the construction of bunkers along the Ya River and the Dadu River within one month. On the 18th, he also ordered the Sichuan Army to "strictly guard" the plan of the joint stock between the Central Red Army and the Red Fourth Front Army. On May 25, the Central Red Army forcibly crossed the Dadu River. On the 24th, the Central Red Army captured Anshunchang, Shimian County, on the right bank of the Dadu River, and annihilated two companies defending the enemy. The next day, 17 soldiers of the Second Company of the First Battalion of the First Regiment of the Red Army, led by the company commander Xiong Shanglin, took a small boat and braved the fierce firepower of the enemy. They successfully crossed and defeated a battalion of the enemy defenders on the left bank. Due to the rapid flow of the Dadu River, bridges could not be built. There were only 4 small boats, and only one regiment could cross the river every day. The Central Military Commission decided to seize the upstream Huding Bridge as the crossing point, and deployed the First Division of the Red Army and the cadre regiment under the command of Nie Rongzhen and Liu Bocheng. Following the left bank of the Dadu River, Lin Biao led the headquarters of the Second Red Army, the main force of the Second Division and the Red Fifth Army to follow the right bank of On May 29, the 4th Regiment of the 2nd Division of the Red Army defeated the blockade of the Kuomintang army and marched 120 kilometers day and night to seize the bridgehead at the west end of the Luding Bridge. At this time, all the wooden planks of the iron bridge have been removed, leaving only a few iron cables hanging in the air. On the east bank of the bridge, there are about 1 regiment of troops of the Sichuan Army relying on strong fortifications to resist. Under the leadership of Liao Dazhu, the 22 soldiers of the 2nd Company of the 2nd Division of the Red Army, under the leadership of Liao Dazhu, the company commander, braved the intensive firepower of the enemy, climbed and supported the suspended iron cables to attack the east of the bridge and captured the east bridgehead. The follow-up troops followed the bridge, occupied Shanghai Dingcheng, and joined the Red 1st Division on the north side of the left bank. Ansh