戦い【たたかい】
battle, war, fight, conflict, fight (against time, poverty, etc.), struggle (for freedom, survival, etc.), war (e.g. on drugs), battle (e.g. against nature), contest, competition, match, game
作戦【さくせん】
tactics, strategy, military operation, naval operation
戦争【せんそう】
war, fighting, fierce competition
挑戦【ちょうせん】
challenge, defiance, dare, attempt, try
戦う【たたかう】
to make war (on), to wage war (against), to go to war (with), to fight (with), to do battle (against), to compete (against), to struggle (against adversities, etc.), to fight, to contend, to resist
戦士【せんし】
soldier, combatant, warrior
戦闘【せんとう】
battle, fight, combat
戦場【せんじょう】
battlefield, battleground
戦車【せんしゃ】
tank (military vehicle), chariot
戦略【せんりゃく】
strategy, tactics
戦後【せんご】
postwar period, period after Second World War
冷戦【れいせん】
cold war, the Cold War
停戦【ていせん】
armistice, ceasefire
内戦【ないせん】
civil war
戦線【せんせん】
(war) front
大戦【たいせん】
great war, great battle, world war
終戦【しゅうせん】
end of war, cessation of hostilities
戦前【せんぜん】
pre-war days, before the war
初戦【しょせん】
first match (in a series)
敗戦【はいせん】
defeat, lost battle, losing a war
