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invasionnoun aggression, assault, attack, attack on rights, breach, disobedience, encroachment, foray, hostile entry, incursion, infiltration, infraction, inroad, inruptio, interference, interloping, intrusion, overstepping, raid, siege, transgression, trespass, violation
Associated concepts: invasion of a corpus, invasion of principal, invasion of privacy, invasion of rights, wrongful invasion
See also: assault, encroachment, entrance, foray, incursion, inflow, infringement, intrusion, onset, outbreak, violation
INVASION. The entry of a country by a public enemy, making war.
2. The Constitution of the United States, art. 1, s. 8, gives power to congress "to provide for calling the militia to execute the laws of the Union, suppress insurrections, and repel invasions." Vide Insurrection.