Complex sentence: While there, "Life" magazine asked him to go on assignment to Southeast Asia, where the French had been fighting for eight years in the First Indochina War; he was killed when he stepped on a land mine.
Split into simpler sentences: While there, "Life" magazine asked him to go on assignment to Southeast Asia, where the French had been fighting for eight years in the First Indochina War. Capa was killed when he stepped on a land mine.