374 MDG welcomes new leadership
YOKOTA AIR BASE, Japan -- Col. Lee Harvis, 374th Medical Group outgoing commander, center, hands the group guidon to Col. Mark August, 374th Airlift Wing commander, left, during a change of command ceremony at Yokota Air Base, Japan, July 9, 2012. The guidon is a tradition dating back to Roman times, where military units would carry a banner with their emblem into battle. (U.S. Air Force photo by Airman 1st Class John D. Partlow)