is a part of
(military) an offensive against an enemy (using weapons)
"the attack began at dawn"
domain category
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"
is a type of (narrower)
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"