Advances in Chinese air defenses and the expanse of the Pacific are presenting major operations and budget challenges for the U.S. Air Force. While the "sanctuary" of U.S. and overseas allied bases have met demands through today, such basing will be insufficient to mount air campaigns in the years ahead against technologically advanced nations, like China, Air Force Chief of Staff Gen. Dave Allvin told the Apex Defense conference in National Harbor, Md., on Tuesday. "As you move farther and…
