action taken by a group of people

the military forces of a nation

a military action of coordinated land, sea, and air forces organized for an invasion

a hostile meeting of opposing military forces in the course of a war

a war measure that isolates some area of importance to the enemy

(military) military action or resources protecting a country against potential enemies

military action involving the use of electromagnetic energy to determine or exploit or reduce or prevent hostile use of the electromagnetic spectrum

the military forces of a nation