Military

• war

  The waging of armed conflict against an enemy; "thousands of people were killed in the war".

• defense

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

• engagement

  A hostile meeting of opposing military forces in the course of a war; "Grant won a decisive...

• electronic warfare

  Military action involving the use of electromagnetic energy to determine or exploit...

• blockade

  A war measure that isolates some area of importance to the enemy.

• amphibious landing

  A military action of coordinated land, sea, and air forces organized for an invasion;...

• police action

  A local military action without declaration of war; against violators of international...

• resistance

  The military action of resisting the enemy's advance; "the enemy offered little resi...

• sortie

  A military action in which besieged troops burst forth from their position.

Also contains

• saber rattling

  The ostentatious display of military power (with the implied threat that it might...