My 3 elder brothers escaped in the jungle and join the guerrillas.

BBC: Vietnam: What do you remember?

Between 1962 and 1971, American aircraft sprayed millions of gallons of Agent Orange over southern Vietnam, in an effort to clear the jungle foliage that helped to hide communist guerrillas.

ECONOMIST: Vietnam: A killer still | The

The BBC's Dan Collyns in Lima says soldiers killed in the attack were part of that operation, which is focused on isolated jungle in the Ene-Apurimac valley - a hotbed for traffickers and guerrillas.

BBC: Peru rebels launch deadly ambush