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death in battle
彼は戦場で戦死した。
He died in battle on the battlefield.
多くの兵士が戦死し、国は彼らを悼んだ。
Many soldiers died in battle, and the nation mourned them.
家族は息子が戦死したという悲報を受け取った。
The family received the tragic news that their son had died in battle.