colonel while at Hamilton Field. World War II Promoted to brigadier general in January 1942, he was assigned to organize the VIII Bomber Command (which became the Eighth Air Force) in England and to understudy the British system of bomber operations. Then, in December 1942, he assumed command of the Eighth Air Force. In a speech he gave to the British that won him favorable publicity, he said, "We won't do much talking until we've done more fighting. After we've gone, we hope you'll be glad we came." Much of Eaker's initial staff, including Captain Frederick W. Castle, Captain Beirne Lay, Jr., and Lieutenant Harris Hull, was composed of reserve rather than career military officers, and the group became known as "Eaker's Amateurs". Eaker's position as commander of the Eighth Air Force led to his becoming the model for the fictional Major General Pat Pritchard in the 1949 movie Twelve O'Clock High. Throughout the war, Eaker was an advocate for daylight "precision" bombing of military and industrial targets in German-occupied territory and ultimately Germany—of striking at the enemy's ability to wage war while minimizing civilian casualties. The British considered daylight bombing too risky and wanted the Americans to join them in night raids that would target wider areas, but Eaker persuaded a skeptical Winston Churchill that the American and British approaches complemented each other in a one-page memo that concluded, "If the RAF continues night bombing and we bomb by day, we shall bomb them round the clock and the devil shall get no rest." He personally participated in the first US B-17 Flying Fortress bomber strike against German occupation forces in France, bombing Rouen on August 17, 1942. Eaker was promoted to major general in September 1943. However, as American bomber losses mounted from German defensive fighter aircraft attacks on deep penetration missions beyond the range of available fighter cover, Eaker may have lost some of the confidence of USAAF Commanding General Henry Arnold. To reduce losses to fighters, Eaker was a strong advocate of the Boeing YB-40 Flying Fortress, a B-17 Flying Fortress which carried additional gun turrets and gunners instead of a bomb load and was intended to act as a long-range, "gunship" escort for conventional bombers. However the YB-40 was not a success in combat. Eaker also strongly advocated work on improving the range of conventional fighters using drop tanks. When General Dwight D. Eisenhower was