President Donald Trump speaks at the United States Army War College in Carlisle, Pa., during the Pennsylvania Defense and Innovation Summit, Wednesday, July 15, 2026. (AP Photo/Julia Demaree Nikhinson) CARLISLE, Pa. — President Donald Trump addressed a defense summit at the U.S. Army War College on Wednesday but spent little time talking about battlefield issues — even as the war in Iran has reduced the U.S. supply of critical missile and interceptor systems.Seated at a roundtable with Defense Secretary Pete Hegseth and Republican Pennsylvania Sen. David McCormick, Trump said the gathering would generate around $10 billion in pledged investments from…