1949on april 20, 2018, a million powerful troops of the chinese people's liberation army initiated the crossing of the river. aaa。 the yangtze river defense line, which the kuomintang army worked hard to manage, collapsed, but it still resisted stubbornly in the southwest. while launching a strategic offensive against the southwest region, the issue of cultivating and taking over cadres for our party is put before us. deng xiaoping proposed to select and cultivate a young, knowledgeable and professional cadre team, and decided to establish the southwest service group of the people's liberation army of china. under the leadership of the southwest bureau, deng xiaoping, liu bocheng and others united and led the vast number of cadres and masses and the people's liberation army commanders and fighters to overcome many difficulties, promote national unity, successfully completed other social reforms such as bandit suppression and grain collection and land reform and disaster resistance, quickly restored industrial and agricultural production, built the chengdu-chongqing railway, peacefully liberated tibet, and achieved great achievements from liberation to taking over, from transformation to construction of the southwest. in 1952, the party central committee decided to transfer deng xiaoping to work in the central committee. through the experience of understanding and exploring the southwest and building the southwest, the cadres, soldiers and simple young intellectuals of the service team wrote a magnificent song of youth with sacrifice and struggle.