COVID-19 Meeting Argentine Army Col. Oscar Zarich, Argentine Partner Nation Liaison Officer, U.S. Army South, left, moderates a COVID-19 subject matter expert exchange among doctors from the Argentine Army and Brooke Army Medical Center, Oct. 21, 2020. SHARE IMAGE: Download Image: Full Size (1.82 MB) Photo By: Robert A. Whetstone, U.S. Army VIRIN: 201021-A-TJ752-1025M.JPG Photo Gallery