1957 alleged Jordanian military coup attempt

The 1957 alleged Jordanian military coup attempt refers to violent confrontations on 13 April 1957 at the large army barracks in Zarqa between royalist, mostly Bedouin units, loyal to King Hussein, and Nasserist-style Arab nationalist units. A military maneuver named "Operation Hashem" was initiated on 8 April and it encircled the capital Amman.