On 26 July 1941, Roosevelt federalized the Philippine Army, recalled MacArthur to active duty in the U.S. Army as a major general, and named him commander of U.S. Army Forces in the Far East (USAFFE). MacArthur was promoted to lieutenant general the following day, and then to general on 20 December. On 31 July 1941, the Philippine Department had 22,000 troops assigned, 12,000 of whom were Philippine Scouts. The main component was the Philippine Division, under the command of Major General Jonathan M. Wainwright. The initial American plan for the defense of the Philippines called for the main body of the troops to retreat to the Bataan peninsula in Manila Bay to hold out against the Japanese until a relief force could arrive. MacArthur changed this plan to one of attempting to hold all of Luzon and using B-17 Flying Fortresses to sink Japanese ships that approached the islands. MacArthur persuaded the decision-makers in Washington that his plans represented the best deterrent to prevent Japan from choosing war and of winning a war if worse did come to worse.