1835-1875 1939-1945 1941-1945 1943 19thcentury 20esiècle 20thcentury aden aerialoperations american americannavaloperations atlanticocean atlantiquenord battleofthe biography bismarcksea british britishnavaloperations campagnesetbatailles campaigns canadian convois(marine) d770 fitch german greatbritain guerremondiale gulfof gunboats histoire history japan leroy mackintosh marinemarchande merchantmarine militarycampaigns militaryoperations naval navalhistory navaloperations northatlanticocean opérationsnavalescanadiennes personalnarratives pirates qi riverineoperations royalnavy récitspersonnelscanadiens scotland scottish shipcaptains sovietunionconvoysfrom submarine toiceland transportation unitedstates worldwar worldwar(1939-1945) worldwar2navaloperations zhang 张旗