During the Ho Chi Minh Campaign, it was 4th Corps that advanced through the delta regions of Phước Long, Biên Hòa and later captured the Special Capital Military District of Saigon and several important targets within Saigon. After the Vietnam War, 4th Corps continued to engage in the Cambodian–Vietnamese War, the corps was awarded the title Hero of the People's Armed Forces ("Anh hùng Lực lượng vũ trang nhân dân") in 1980.