COMBAT MILESTONE U.S. Air Force Lt. Col. Sam Milam taxies down the flightline in an A-10 Thunderbolt II after logging the unit's 10,000th combat flight hour during a mission on Bagram Airfield, Afghanistan, Feb. 24, 2009. Milam is the 75th Expeditionary Fighter Squadron commander. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 624594-F-YWC19-310.jpg Photo Gallery