text: lookin for veterans who served in vietnam during 1966-1968 27th combat engineers, 36thengineer batallion11thac my father spec4thclass jack l coffey served during 66-68 in vietnam. xuanloc, he was at blackhorse base camp, iron triangle hobo jungle, 27th combat engineers, 36th engineer battalion, and 11th armored calvory this is all the info i have and would like as much info on this as possible. you could visit your local vfw or american legion post. speak to the service officer and i am sure he can help you.  www.vfw.org www.legion.org