This March 1944 photograph shows Allied sailors boarding the German U-Boat (submarine) U-744 following the second-longest submarine hunt of the Second World War.

In a coordinated effort that used around 350 depth charges, six Canadian and British escort ships forced U-744 to the surface after over 30 hours of attacks. The warships repeatedly hit the surfaced submarine with gunfire, and then boarded it, removing survivors and some materials for intelligence analysis. HMCS Chilliwack's boat, seen here, was the first alongside. Following an unsuccessful attempt at towing the badly damaged submarine, the escorts sank it.

George Metcalf Archival Collection
CWM 19910001-029