Active 5 years, 7 months ago Keith Nightingale @keithnightingale Log in ActivityProfileFriends 0Forums View Personal Details Full name Keith Nightingale About me I am a retired Col in the US Army. Ranger/Airborne. During Vietnam, I was the senior advisor to the 52d Ranger Battalion during Tet and at Baria. I operated many times with the Regiment and enjoyed it immensely. Good people. Military Service Served in Vietnam, Served in the Military