ENGINEER BRIEFING U.S. Army Col. Thomas E. O'Donovan, commander of the Afghanistan Support District, U.S. Army Corps of Engineers, briefs reporters at the Pentagon, March 20, 2009, on some of the many projects his command has been working on to aid the people of Afghanistan. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 148899-O-RHJ47-140.jpg Photo Gallery