Originally named Regiment 34 (Trung đoàn 34), Tất Thắng was founded and operated in Nam Định Province, but moved into the surrounding areas of Nam Định town, using guerrilla tactics to protect the local population from French colonialism and helping them build their own militia force. It changed its name to Tất Thắng in 1949 after receiving a letter of commendation from Hồ Chí Minh. In 1952, Tất Thắng changed from an infantry to a 105mm artillery regiment – the first artillery regiment in North Vietnam. In 1954, after the Battle of Điện Biên Phủ, it was changed into a Brigade.
