My father was with B company, 554th Engineer Battalion, 25th Infantry Division (Tropic Lighting) in Vietnam. His base camp was at Nui Ba Den in the Tay Ninh Province. He was in country from 3/67 to 3/68. Just wondering if anyone served with the 554th or any of the 554th's sister units, or even the 25th ID around this same time? Thanks, NYH!