Tā zài zhànchǎng shàng wèiguó juānqū, lìng rén jìngyǎng.
He died on the battlefield for his country, earning everyone's respect.
Tips
usage
为国捐躯 is formal and solemn, used in speeches, historical texts, and memorials. 捐躯 (to sacrifice one's body/life) is a literary expression not used in casual speech.