activity - any specific activity; "they avoided all recreational activity"

combined operation - a military operation carried out cooperatively by two or more allied nations or a military operation carried out by coordination of sea, land, and air forces

maneuver, simulated military operation, manoeuvre - a military training exercise

military campaign, campaign - several related operations aimed at achieving a particular goal (usually within geographical and temporal constraints)

naval campaign - an operation conducted primarily by naval forces in order to gain or extend or maintain control of the sea

military mission, mission - an operation that is assigned by a higher headquarters; "the planes were on a bombing mission"

reinforcement, reenforcement, support - a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission; "they called for artillery support"

attack, onrush, onset, onslaught - (military) an offensive against an enemy (using weapons); "the attack began at dawn"

offence, offensive, offense - the action of attacking an enemy

peacekeeping, peacekeeping mission, peacekeeping operation - the activity of keeping the peace by military forces (especially when international military forces enforce a truce between hostile groups or nations)

amphibious operation - a military operation by both land and sea forces

information gathering - the act of collecting information

psychological operation, psyop - military actions designed to influence the perceptions and attitudes of individuals, groups, and foreign governments

covert operation - an intelligence operation so planned as to permit plausible denial by the sponsor

Argonne, Argonne Forest, Meuse-Argonne, Meuse-Argonne operation, Meuse, Meuse River - an American operation in World War I (1918); American troops under Pershing drove back the German armies which were saved only by the Armistice on November 11

Operation Desert Storm - the United States and its allies defeated Iraq in a ground war that lasted 100 hours (1991)

armed forces, armed services, military, military machine, war machine - the military forces of a nation; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker"