CNN The Sixties June 20, 2014 02:04:00
Called at bak. five american helicopters are shot down. three american advisers are killed. 63 south vietnamese die, half of them shooting at each other. >> we've got u.s. military advisers flying combat missions. we've got advisers that are accompanying south vietnamese forces into the field. so by this point, their role had gone beyond simply advising. >> we have learned a bitter lesson. the army of south vietnam cannot cope with the committed gorilla enemy. it is trained for conventional war american style. >> there is growing uncertainty about whether the advisory effort is really working....