Luke Air Force Base, created in less than a year from desert scrub and farmland, stands some 20 miles west of Phoenix. On March 31, 1941, months before the United States entered World War II, construction began. That summer, the Army Air Corps named Luke Field after World War I hero and triple ace Frank Luke Jr. Some pilots from Luke Field's first class flew from airfields in Hawaii during the Japanese attack on Pearl Harbor. From the beginning, Luke Field trained fighter pilots, as it does today. Over the years, Luke Air Force Base was home to 14 primary fighter aircraft, graduated over 60,000 students, and accounted for millions of training flight hours. Of the pilots who trained at Luke Field, a number became aces, including the all-time US leading ace, Maj. Richard I. Bong. For decades, Luke Air Force Base has been home to more fighter aircraft than any other base in the United States, earning the moniker "Fighter Country."