On 13 August 1941, the Air War Plans Division of the USAAF produced its plan for a global air strategy, AWPD/1. Formally known as "Annex 2, Air Requirements" to "The Victory Program", a plan of strategic estimates involving the entire U.S. military, the plan was prepared in accordance with strategic policies drawn earlier that year in the ABC-1 agreement with the British Commonwealth and the U.S. war plan Rainbow 5. Its forecast figures, despite planning errors from lack of accurate information about weather and the German economic commitment to the war, were within 2 percent of the units and 5.5 percent of the personnel ultimately mobilized, and it accurately predicted the time frame when the invasion of Europe by the Allies would take place.