English Language Learners Definition of invade. : to enter (a place, such as a foreign country) in order to take control by military force. : to enter (a place) in large numbers. : to enter or be in (a place where you are not wanted)
An invasion is a military offensive in which large numbers of combatants of one geopolitical entity aggressively enter territory owned by another such entity, generally with the objective of either conquering; liberating or re-establishing control or authority over a territory; forcing the partition of a country; altering the established government or gaining concessions from said government; or a combination thereof. An invasion can be the cause of a war, be a part of a larger strategy to end a
invasion. A military action consisting of armed forces of one geopolitical entity entering territory controlled by another such entity, generally with the objective of conquering territory or altering the established government. The entry without consent of an individual or group into an area where they are not wanted.