The 4th Psychological Operations Group GHOST in the MACHINE

The 4th Psychological Operations Group (Airborne) (or 4th POG)(A) is one of the United States Army's active military information support operations units along with the 8th Psychological Operations Group (Airborne), which was activated 26 August 2011 at Fort Bragg. The 8th Group has responsibility for the 1st, 5th and 9th Psychological Operations battalions. The 4th Group has responsibility for the 3rd, 6th, 7th and 8th battalions, with a total of about 800 soldiers.

On 21 June 2010, an announcement was made that the military intends to rename psychological operations, or PSYOP, to Military Information Support Operations. The decision, made a few days earlier by Admiral Eric Olson, Commander, United States Special Operations Command and Army's Chief of Staff General George Casey, was propagated through a memo dated 23 June 2010. By October 2017, the U.S. Army Special Operations Command (USASOC) reverted its decision changing their name back to PSYOP stating, "Psychological operations refers to the name of units, while MISO refers to the function that soldiers in PSYOP units perform".

The unit is based at Fort Bragg, North Carolina and is a part of the 1st Special Forces Command (Airborne), under the United States Army Special Operations Command. The 4th POG was constituted 7 November 1967 in the Regular Army as Headquarters and Headquarters Company, 4th Psychological Operations Group. Originally activated 1 December 1967 in Vietnam, it was inactivated 2 October 1971 at Fort Lewis, Washington, and reactivated 13 September 1972 at Fort Bragg.