Today, 86 years ago, on March 6, 1939 (January 16, 1939), Zhou Enlai put forward three principles for the development of the new fourth army. The New Fourth Army Army Ministry convened a meeting of the Communist Party activists in Chongqing South, and Zhou Yuan made a report on the current situation and the mission of the new fourth Army. He put forward three principles for the development of the new fourth Army: 1. where the place is empty, we develop to that place. 2. where there is danger, we go to that place to create new activities. 3. where there is only the enemy hypocrisy, friendship and friendship are less attentive to activity, we develop to that place.