war, warfare - the waging of armed conflict against an enemy; "thousands of people were killed in the war"

American Civil War, United States Civil War, War between the States - civil war in the United States between the North and the South; 1861-1865

English Civil War - civil war in England between the Parliamentarians and the Royalists under Charles I; 1644-1648

Spanish Civil War - civil war in Spain in which General Franco succeeded in overthrowing the republican government; during the war Spain became a battleground for fascists and socialists from all countries; 1936-1939