S: (n) amphibious landing (a military action of coordinated land, sea, and air forces organized for an invasion) "MacArthur staged a massive amphibious landing behind enemy lines"
S: (n) battle, conflict, fight, engagement (a hostile meeting of opposing military forces in the course of a war) "Grant won a decisive victory in the battle of Chickamauga"; "he lost his romantic ideas about war when he got into a real engagement"
S: (n) defense, defence, defensive measure ((military) military action or resources protecting a country against potential enemies) "they died in the defense of Stalingrad"; "they were developed for the defense program"
S: (n) electronic warfare, EW (military action involving the use of electromagnetic energy to determine or exploit or reduce or prevent hostile use of the electromagnetic spectrum)
S: (n) police action (a local military action without declaration of war; against violators of international peace and order)
S: (n) resistance (the military action of resisting the enemy's advance) "the enemy offered little resistance"
S: (n) saber rattling, sabre rattling (the ostentatious display of military power (with the implied threat that it might be used))
S: (n) sortie, sally (a military action in which besieged troops burst forth from their position)
S: (n) war, warfare (the waging of armed conflict against an enemy) "thousands of people were killed in the war"