 Lê Duẩn, Tố Hữu, Trường Chinh and Phạm Văn Đồng often shared dinner with Hồ, and all of them remained key figures throughout and after the war.In the early 1960s, the North Vietnamese Politburo was divided the "North first" faction who favored focusing on the economic development of North Vietnam, and the "South first" faction, who favored a guerrilla war in South Vietnam to reunite Vietnam in the near future.Between 1961 and 1963, 40,000 Communist soldiers infiltrated into South Vietnam from the North.