Coup Atlas Research Database
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35005241973AttemptedMilitary coup

Greece, 1973 — military coup attempt

Greece (GRC)Southern Europe, EuropeMay 24, 1973

Event Summary

In May 1973 a wide anti-junta conspiracy was discovered within the mostly royalist Greek Navy and suppressed just before it could act, but one warship carried out a dramatic act of defiance. On 23 May 1973 the destroyer Velos, under the command of Commander Nikolaos Pappas, was taking part in a NATO exercise when it broke away, refused to return to Greece, and sailed to Fiumicino near Rome, where Pappas and part of the crew declared themselves against the military regime of the colonels and requested political asylum in Italy. The broader Navy mutiny inside Greece was crushed, with dozens of naval officers and two retired admirals arrested in a purge that spilled over into the air force and army.

The junta leader Georgios Papadopoulos used the mutiny as a pretext, and on 1 June 1973 he abolished the monarchy, blaming the exiled King Constantine, and made himself provisional president. The regime survived the mutiny but was fatally weakened, falling within little more than a year.

Researched Details

Researched

Independent research, added record by record. Hover any label for what it means.

Target identified in Coup Atlas research: The colonels' junta under Papadopoulos suppressed the Navy mutiny and used it to abolish the monarchy
RESEARCHED NAME
Key figures
Georgios Papadopoulos (junta leader, target)
Nikolaos Pappas (commander of the Velos, mutiny leader)
royalist Navy officers (conspirators)

Sources

In May 1973 a wide ranging anti-junta movement was discovered among the ranks of the mostly royalist Navy and suppressed just before its outbreak, and one ship, the destroyer Velos, successfully mutinied.
SOURCE REVIEWED Wikipedia, 1973 Greek republic referendum open source ↗
On 23 May 1973 the crew of the destroyer HNS Velos under Commander Nikolaos Pappas demanded political asylum in Italy, while the rest of the mutiny in Greek territory was suppressed.
SOURCE REVIEWED Wikipedia, List of Greek coups d'etat open source ↗
On 23 May 1973 the Velos, under Commander Pappas, refused to return to Greece after a NATO exercise and remained anchored at Fiumicino, Italy, as part of the Greek Navy mutiny of 1973.
SOURCE REVIEWED Greek News Agenda, Restoration of Democracy open source ↗
The wave of arrests following the Navy mutiny involved 60 or more Navy officers and spilled into the air force and army, and on 1 June Papadopoulos abolished the monarchy and assumed the duties of provisional president.
SOURCE REVIEWED U.S. State Department, Office of the Historian open source ↗

Editorial Note

Dataset date 24 May 1973 corresponds to the 23 to 24 May 1973 Greek Navy mutiny and the Velos defiance; the dataset codes it a military coup with leader unharmed, reflecting the naval conspiracy against the junta. Well documented. Second Greece record in the run, after the 1967 royal counter-coup in batch 66.

Cross-Reference

Only one dataset carries it. One of the three reference datasets we check against carries this event; the others do not list it. That is not a contradiction — the datasets cover different periods and use different thresholds — but it means the record has had less outside corroboration.

Identifiers for finding this same event in the other datasets:

Cline Center id
35005241973

How the match is made is described in crossref-report.md.

Outcome and Target

Coup Atlas research identifies the target as: The colonels' junta under Papadopoulos suppressed the Navy mutiny and used it to abolish the monarchy.

Baseline coding: Coup attempt failed to remove the incumbent. Recorded leader fate: remained in office; not physically harmed. The baseline file does not name individual targets; researched names are kept in a separate layer.

Baseline Dataset Citation

Cline Center Coup d’État Project Dataset, v2.2.2
Peyton, Buddy, Joseph Bajjalieh, Michael Martin, and Andrea Gerald. 2026. Cline Center Coup d’État Project Dataset. Cline Center for Advanced Social Research. V.2.2.2. February 17. University of Illinois Urbana-Champaign. doi: 10.13012/B2IDB-9651987_V10
⚑ This citation establishes the coded baseline record; use the claim-level sources above for the researched narrative.

Baseline Source-Document Entries

Luttwak

Named in the baseline source document; no article citation was recorded.

Wikipedia

Los Angeles Times

“Attempted Coup Foiled, Greece Says,” May 24, 1973

Washington Post

“Greek Government Foils Coup Attempt by Ex-Admirals,” May 25, 1973

This is the citation trail carried by the baseline dataset, grouped by outlet and rejoined from the line-wrapped original. Coup Atlas has not independently re-checked every document; read the original before citing a specific claim. URLs the import damaged beyond safe repair are shown as plain text and listed in citations-report.md. How this list is built →

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