Military junta

A military junta is government by a committee of military leaders. The term derives from the Spanish junta meaning committee, specifically a board of directors. It originally referred to an executive body that came to power after a military coup in 20th century Latin America. Often it becomes a military dictatorship, though the terms are not synonymous.
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Noun
1. a group of military officers who rule a country after seizing power
(synonym) junta
(hypernym) clique, coterie, ingroup, inner circle, pack, camp