combatir bedeutet auf Englisch

combat [combatted, combatting, combats]▼(to fight; to struggle for victory)
verb
[UK: ˈkɒm.bæt] [US: ˈkɑːm.bæt]John died in combat. = John murió en combate.

fight [fought, fighting, fights]▼((transitive) to contend in physical conflict against)
verb
[UK: faɪt] [US: ˈfaɪt]The fighting lasted one week. = El combate duró una semana.

fight fire with fire▼(respond to an attack with a counter-attack)
verb