Coup Atlas Research Database
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66304141957AttemptedMilitary coup

Jordan, 1957 — military coup attempt

Jordan (JOR)Western Asia, AsiaApril 14, 1957

Event Summary

In mid-April 1957 the young King Hussein of Jordan faced what royalist accounts describe as an attempted coup centered on the Zarqa army barracks, the culmination of a bitter struggle between the palace and the pan Arab nationalist forces around Army Chief of Staff General Ali Abu Nuwar and the pro-Nasser government of Prime Minister Suleiman Nabulsi. After Hussein forced Nabulsi to resign on 10 April, rioting broke out on 13 April at Zarqa between royalist Bedouin units and Arabist units, with rumors flying that the 21-year-old king had been killed. Hussein drove to Zarqa himself, rallied the loyal Bedouin troops, and defused the confrontation, while a 3,000-man Syrian force that had begun moving south turned back.

Abu Nuwar and other Arabist officers resigned and fled to Syria. Hussein imposed martial law, dissolved political parties, and disbanded suspect units, curtailing Jordan's mid-1950s constitutional democracy; whether a genuine coup or a fabricated pretext, the outcome entrenched his personal rule.

Researched Details

Researched

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

Target identified in Coup Atlas research: King Hussein survived the Zarqa affair unharmed and consolidated his personal rule; he reigned until his death in 1999
RESEARCHED NAME
Key figures
King Hussein of Jordan (monarch, target)
Ali Abu Nuwar (army chief of staff, alleged coup leader)
Suleiman Nabulsi (dismissed pro-Nasser prime minister)

Sources

The Arabist government of Suleiman Nabulsi was forced to resign on 10 April, and on 13 April rioting broke out in the Zarqa barracks; the 21-year-old Hussein went to end the violence between royalist and Arabist units after rumors spread that he had been killed.
SOURCE REVIEWED Wikipedia, 1957 alleged Jordanian military coup attempt open source ↗
A 3,000-man Syrian force started moving south in support of what they perceived as a coup attempt but turned around after the army units showed their loyalty to the King, and Abu Nuwar and other senior Arabist officers resigned and left Jordan for Syria.
SOURCE REVIEWED Wikipedia, 1957 alleged Jordanian military coup attempt open source ↗
By nightfall Abu Nuwar persuaded Hussein to allow him to leave the country, and on the morning of 14 April he officially resigned and departed for Damascus.
SOURCE REVIEWED Wikipedia, Ali Abu Nuwar open source ↗
Hussein imposed martial law, dissolved political parties, and disbanded Palestinian dominated army units after the incident, moves that significantly curtailed the constitutional democracy that had existed in Jordan in the mid-1950s.
SOURCE REVIEWED Wikipedia, 1957 alleged Jordanian military coup attempt open source ↗

Editorial Note

Dataset date 14 April 1957 corresponds to Abu Nuwar's formal resignation and departure the morning after the 13 April Zarqa rioting; treated as the same event, noted. The veracity of the plot is debated by historians, with some viewing it as a royalist pretext, which the summary reflects.

Cross-Reference

Datasets agree. At least two of the three reference datasets we check against carry this event, and none of them disagrees about its date or its result.

Identifiers for finding this same event in the other datasets:

Cline Center id
66304141957
Albrecht/Koehler/Schutz (CAM) id
CAM-663-1957-04-13

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

Outcome and Target

Coup Atlas research identifies the target as: King Hussein survived the Zarqa affair unharmed and consolidated his personal rule; he reigned until his death in 1999.

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

CSP

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

Powell and Thyne

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

New York Times

“EX-PREMIER HELD: Nabulsi’s Supporters Arrested,” April 15, 1957

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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