LEAVENWORTH SPEECH Defense Secretary Robert M. Gates speaks to students at the U.S. Army Command and General Staff College at Fort Leavenworth, Kan., May 7, 2010. He told students differences between conventional and irregular warfare are becoming "less relevant in the real world." SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 602624-S-ALK60-842.jpg Photo Gallery