一1936年夏，红一方面军东征胜利，回师陕北后，中共中央审时度势，作出了三大主力红军会合的战略决策。5月中旬，红一方面军主力改编为西方野战军，由司令员兼政委彭德怀率领挥师西征，迎接二、四方面军；7月初，红二、四方面军在甘孜会师后并肩北上，挺进甘肃，向一方面军靠 In the summer of 1936, following the triumph of the Red Army on the east and the return to northern Shaanxi, the CPC Central Committee took stock of the situation and made the strategic decision of merging the three main Red Army units. In mid-May, the Red Army was mainly reorganized into the Western Army Field Army. Commander and political commissar Peng Dehuai led the levy division to welcome the second and fourth quarters. At the beginning of July, the second and fourth lieutenants in the Red Army joined together to go northward and advance to Gansu to advance toward Gansu. On the one hand by the army