Bình Xuyên Force (Vietnamese: Bộ đội Bình Xuyên, IPA: [ɓɨ̂n swiəŋ]), often linked to its infamous leader, General Lê Văn Viễn (nicknamed "Bảy Viễn"), was an independent military force within the Vietnamese National Army whose leaders once had lived outside the law and had sided with the Việt Minh.

His mother remarried after his father's death and the family moved to Nhà Bè in the late 1920s, where Dương grew up to be a respected martial arts teacher.

[5] In late 1929, after the formation of the southern Communist committee, Ngô Gia Tự ordered Châu Văn Ký to infiltrate the ranks of workers and manual laborers in Nhà Bè.

[7] While this decision would have been of little consequence in Tonkin or central Vietnam, where the Communist-dominated Việt Minh was strong enough to stand alone, in Cochin China, where the Bình Xuyên support was crucial, Ba Nho's action led to suppression from the returning French troops.

The Cochin division of the Indochina Communist party (Vietnamese: Đông Dương Cộng sản Năm Bộ) was weakened by mass arrests and executions.

On 20 November 1945, to avoid being decimated by French counter-attacks, Bình Xuyên troops withdrew to Rừng Sác to regroup for future military operations.

Ba Dương, newly promoted by General Nguyễn Binh in September to Deputy Commander of Zone 7, died in an air attack on 16 February 1946.

[citation needed] After Ba Dương's death, his lieutenants split into three groups: In April 1946, Military Zone 7 appointed Năm Hà as the Bình Xuyên's new commander.

In June 1948, Bảy Viễn became colonel in charge of the Bình Xuyên Auxiliary Forces, temporarily reporting to Trần Văn Hữu, Deputy Premier in the provisional government of Vietnam and Governor of Nam Phan.

[11] French officials in South Vietnam gave Viễn full control of Sài Gòn–Chợ Lớn under stipulation that he wipe out the city's Communist infrastructure.

[14][15] General Viễn made arrangements with Bảo Đại giving them control of their own affairs in return for their nominal support of the regime, just as he had done so with the French colonial government.

Bình Xuyên's paramilitary forces were mostly wiped out by the VNA under the command of Dương Văn Minh in Operation Rung Sat in 1955.

Bảy Viễn, the leader of the organization, was exiled to Paris after his unsuccessful attempt to take power from Prime Minister Ngô Đình Diệm in May 1955.