Media capture · 1954 · US, Guatemala
Operation PBSuccess
Operation PBSuccess was the CIA plan, authorised by Eisenhower in August 1953 with a $2.7 million budget, to remove Guatemala's president Jacobo Árbenz. An exile force of a few hundred men under Carlos Castillo Armas crossed the border on 18 June 1954. A radio station posing as a rebel transmitter broadcast invented events. Árbenz resigned on 27 June. The agency's own historian, Nicholas Cullather, wrote that a defeat would have exposed "the hopeless weakness of Castillo Armas's troops". The coup was real; the staged rebel voice is the operation.

- Run by
- CIA
- Authorised by Eisenhower in August 1953; first planned as PBFortune under Truman
- Budget for psychological warfare and political action
- $2.7 million
- Within a wider paramilitary operation; some estimates of total cost run higher
- Árbenz resigned nine days after the border crossing
- 27 Jun 1954
- Cullather disputes that propaganda alone caused it
- Time to exposure
- 1994-97
- Cullather's classified CIA history (1994); about 1,400 pages released on 23 May 1997
Timeline
Aug 1953 · Context
Eisenhower authorises Operation PBSuccess, with a $2.7 million budget for "psychological warfare and political action" and "subversion", among other components.
1 May 1954 · It worked
The CIA's "Voice of Liberation" begins shortwave broadcasts, run by contract officer David Atlee Phillips. It reports invented events: "imaginary uprisings and defections and plots to poison wells and conscript children" (Weiner).
Mid-May 1954 · It worked
The state radio station goes off the air in mid-May for a scheduled antenna replacement; per Weiner, Phillips "snuggled up to its frequency", broadcasting next to it.
18 Jun 1954 · It worked
Castillo Armas's force crosses the border at 2020 hours, per Cullather's chronology, supported by air raids. Its size is unverified here: secondary accounts range from about 200 to under 500 men.
27 Jun 1954 · It worked
Árbenz resigns.
1994 · Exposed
Nicholas Cullather completes a classified CIA History Staff study. The National Security Archive summarises it as finding that "Operation Success" barely succeeded; Cullather writes that a defeat at Chiquimula would have uncovered "the hopeless weakness of Castillo Armas's troops". After the resignation the agency told Eisenhower only one rebel had been killed ("Incredible", he replied), when its own records show at least four dozen dead.
23 May 1997 · Exposed
The CIA releases about 1,400 pages of its Guatemala records, out of an estimated 100,000 or more, after years of "neither confirm nor deny" answers to FOIA requests.
The "revolution" Guatemalans heard on the radio was a CIA studio; the agency's own historian later wrote of the "hopeless weakness" of the invading force.
“the hopeless weakness of Castillo Armas's troops, failure to make provisions for the possibility of defeat”
The playbook
- 1
Planted story
The Voice of Liberation put invented uprisings, defections and plots into circulation as news.
- 2
Hidden messenger
The station posed as a clandestine rebel transmitter inside Guatemala; its real operator was a CIA officer.
- 3
Manufactured incident
The broadcasts reported events that had not happened, and air raids and the border crossing were presented as the opening of an unstoppable revolution.
- 4
Win before the facts
The aim was to make the outcome look settled before the military facts were, so officers and officials would stop resisting. Cullather disputes that this alone explains Árbenz's fall.
Through the FATE framework
- Focus6/10
Listeners were pulled toward a rebel station with news of uprisings that were not happening.
- Authority5/10
The station posed as an insurgent voice and, per Weiner, broadcast next to the state frequency while it was off the air.
- Tribe6/10
Anti-communist framing divided officers and citizens from the government.
- Emotion8/10
Rumours of poisoned wells, conscription of children and mass defections played on fear.
Propaganda techniques used
Same playbook today
The same playbook can be run by anyone, on any side. We list every current PSYOP that matches Operation PBSuccess, whoever is behind it.
No live PSYOP we track matches this playbook right now. When one does, it will appear here.