Adm. Thad Allen, U.S. Coast Guard commandant, addresses Air War College students April 9 about Homeland Security. The admiral's speech, which also touched on some of the ways the Coast Guard and Air Force work together, was part of the Distinguished Lecture Series that Air War College provides its students in order to educate them on leadership. Under the program, leaders from across a wide range of disciplines, including diplomats and scholars, speak on a regular basis to Air War College students. (U.S. Air Force photo/Melanie Rodgers Cox)