The 6th Psychological Operations Battalion was activated in 1965, and deployed to the Republic of Vietnam in 1966. Within one year, demand for PSYOP support from US and Allied combat units increased so significantly that the Battalion could not meet demand effectively. Accordingly, in December 1968, the Battalion was redesignated the 4th Psychological Operations Group, and its constituent companies were redesignated as Battalions. The original 246th PSYOP Company was redesignated as the 6th PSYOP Battalion and was located in Bien Hoa where it supported US and Allied ground and Special Operations forces in the III Corp Tactical Zone surrounding and north of Saigon, the national capital. The roster of the Battalion's commanding officers since its inception in 1965:
Command Dates Commanding Officer
1965-1966 LTC Wallace J. Moulis
1966-1967 LTC David W. Affleck
1967-1968 LTC Clarence A. Binkley
1968 LTC Otmer R. Gorrell
1968-1969 LTC Raymond Deitch
1969-1971 LTC Irving O. Barker
1971-1972 Battalion deactivated
1972 LTC William S. Lawton Jr.
1972-1974 LTC Harold J. Fraley
1974-1975 LTC Roger Knight
1975-1977 LTC Alfred Paddock
1977-1978 LTC Charles S. McClain
1978 MAJ Matthew Duffy
1978-1979 LTC Edward H. Cummings
1978-1982 LTC Michael W. Totten
1982-1984 LTC Arthur A. Lovgren
1984-1986 LTC Fred C. Parker IV
1986-1988 LTC John Reppert
1988-1990 LTC Daniel Devlin
1989-1991 LTC Jay Savage
1991-1993 LTC Robert Trost
1993-1995 LTC James Treadwell
1995-1996 LTC Michael Furlong
1996-1997 LTC Steven N. Collins
1997-1999 LTC John Kidd
1999-2001 LTC Michael Seidl
2001-2003 LTC Michael Player
2003-2005 LTC Robert F. Wieler, Jr.
2005-2007 LTC Paul D. Touchette
2007-2009 LTC Alfred E. Renzi, Jr.
2009-2011 LTC Ralph L. (Bo) Clayton III
2011-2013 LTC James R. Hickman
2013-2015 LTC Bethany C. Aragon
2015-2017 LTC Michelle G. Tope
2017-2019 LTC Eric Kreitz
2019-2021 LTC Timothy Manton
2021-2023 LTC Jeremiah Oligario
2023-Present LTC Ryan Q. Flaherty