His heroic death moved many people.
After a brave fight, they achieved victory.
The general met a heroic end on the battlefield.
His heroic death in battle moved many people.
It was a war in which many young men fell heroically.
英雄的 broadly means 'heroic', whereas 壮烈 specifically highlights the intense emotional impact of the bravery, often in a fatal or extreme situation.
悲壮 emphasizes a tragic, sorrowful heroism (as in a doomed resolve), while 壮烈 focuses on the gallant, awe-inspiring courage itself.
Compound of 壮 (sō, 'vigorous, grand') and 烈 (retsu, 'fierce, intense'). The combination conveys a sense of grand, intense bravery.