2 September 1965 [1]

10 November 1966

15 March 1968

About 1 Nov. 1968 [5]

937th Group

18th Brigade [2]

USAECV [3]

USAECV

19th Battalion

45th Group

18th Brigade

18th Brigade

19th Battalion

35th Group

937th Group

19th Battalion

19th Battalion

1 May 1969 [4]

5 September 1969

Between 1 May and 31st July 1970 [5]

USAECVN

USAECVN

USAECVN

18th Brigade

18th Brigade

18th Brigade

45th Group

35th Group [6]

937th Group

19th Battalion

19th Battalion

19th Battalion