He lost many comrades in the war.
noun
Used for non-physical struggles, such as against time, poverty, disease, or for freedom and survival.
貧困との戦いはまだ終わっていない。
The fight against poverty is not over yet.
彼女は病気との長い戦いの末に回復した。
She recovered after a long struggle with illness.
noun
contest; competition; match; game
Used for sports matches, games, or competitive events.
今日の戦いはどちらが勝つか分からない。
It's hard to tell who will win today's match.
彼はその戦いで見事なプレーを見せた。
He showed brilliant play in that contest.