泸定桥
The 4th regiment then marched 120 km in less than 24 hours. Along the way, they engaged and defeated numerous nationalist forces which blocked their path. On the dawn of May 29, 1935, Lin Biao's troops reached the bridge, only to discover that local warlords allied with the ruling Kuomintang had removed most of the planks on the bridge. Furthermore, Luding City itself was occupied by a regiment of troops from warlord Liu Wenhui's 38th Brigade, 4th brigade, under the 5th division of the 24th Corps. The brigade's commander, Li Quanshan (李全山), was also a wealthy opium dealer. This was a common business for many of the local warlord commanders. Li Quanshan's (李全山) direct superior, Yuan Guorui (袁国瑞), the commander of the 4th brigade, was reputed to be an opium addict himself, as were most of the troops . Li divided his regiment into two parts, with two battalions deployed inside Luding City, while another battalion was deployed some distance outside in the suburb. His defending forces still enjoyed numerical superiority over the attacking Red Army. The 4th regiment had lost considerable strength during the hurried 24-hour march - approximately two-thirds of the soldiers had fallen behind during the march - and only a battalion-sized force had reached the western bank of the Luding Bridge that morning.