09/01 Mon. Navy assumes responsibility for trans-Atlantic convoys from 
           point off Argentia to meridian of Iceland. 
           Commander in Chief Atlantic Fleet (Adm. E. J. King) 
           designates a task group as a Denmark Strait Patrol to operate 
           in waters between Iceland and Greenland.
09/04 Thu. Destroyer GREER (DD-145), while tracking German submarine 175 
           miles southwest of Iceland, is attacked but not damaged.
09/07 Sun. United States merchant ship STEEL SEAFARER is sunk by German 
           air attack in Gulf of Suez.
09/09 Tue. Naval Coast Frontier Forces are formed.
09/11 Thu. President announces order to Navy to attack any vessel 
           threatening United States shipping or ships under United 
           States escort.
09/12 Fri. Coast Guard cutter NORTHLAND (PG-49) seizes Norwegian trawler 
           BUSKOE in MacKenzie Bay, Greenland; BUSKOE's mission was to 
           establish and service German radio weather stations in 
           Greenland.
09/17 Wed. United States Navy escorts eastbound British trans-Atlantic 
           convoy for the first time.
09/26 Fri. Navy orders protection of all ships engaged in commerce in 
           United States defensive waters - by patrolling, covering, 
           escorting, and by reporting or destroying German and Italian 
           naval forces encountered.
09/27 Sat. First Liberty Ship, SS PATRICK HENRY, is launched at 
           Baltimore, Md.