The need for a militarized construction force became evident after the Japanese Attack on Pearl Harbor. On December 28 Radm. Moreell requested authority to create Naval Construction Battalions. The Bureau of Navigation gave authorization on 5 January 1942. Three Battalions were officially authorized on 5 March 1942. Enlistment was voluntary until December when the Selective Service System became responsible for recruitment. Seabee Training Centers were named for former heads of the Civil Engineer Corps: Radm. Mordecai T. Endicott, Radm. Harry H. Rousseau, Radm. Richard C. Hollyday, Radm. Charles W. Park. Camp Peary was named for RADM. Robert Peary. The Seabees also named a Center for the first CEC killed in action, Lt. Irwin W. Lee and Lt. (jg) George W. Stephenson of the 24th CB.