a military group that rules another country by force is\na dictatorship.\nan insurgency.\na junta.\na regime.

Brief Explanations:

A junta is a military - led group that seizes power and rules a country by force. A dictatorship can be any form of autocratic rule, not necessarily military - led. An insurgency is a rebellion against an established authority, not a ruling group. A regime is a general term for a system of government, not specifically a military - led force ruling another country.

Answer:

C. a junta