1939 ⟶ German U-boats Ordered to Attack British Ships
German authorities order U-boats to immediately take action ...Year
1939
1940
1941
1942
🇩🇪 German U-boats Ordered to Attack British Ships
German authorities order U-boats to immediately take action against all British ships, but sparing French ships and in strict observance of prize rules.⟶

GermanyU-boatsNaval WarfareAtlantic OceanWorld War IIWar DeclarationSubmarine Warfare
🚢 SS Athenia Torpedoed, Beginning of the Battle of the Atlantic
Within hours of the British declaration of War, SS Athenia, a British cruise ship en route from Glasgow, UK, to Montreal, Canada, is torpedoed by the German submarine U-30 250 miles (400 km) Northwest of Ireland. 112 passengers and crew members are killed. The "Battle of the Atlantic" starts.⟶

Battle of the AtlanticU-boatsGermanyWorld War IINaval WarfareAtlantic OceanWar CrimeSubmarine Warfare
💥 First Merchant Ship Sunk in the Battle of the Atlantic
⚓ Hitler Declares Blockade of British Isles
Hitler declares a blockade of the British Isles.⟶
GermanyUKBlockadeNaval WarfareAtlantic OceanWarfareU-boatsTradeWorld War II
🚢 German U-boat Offensive Gains Success
German U-boat offensive in the Atlantic is now increasingly successful.⟶
U-boatsAtlantic OceanNaval WarfareSubmarine WarfareBattle of the AtlanticWar at SeaMerchant Shipping
🚢 U-boats Withdraw from US Atlantic Coast
Battle of the Atlantic: German Grand Admiral Karl Dönitz orders the last U-boats to withdraw from their United States Atlantic coast positions in response to an increasingly effective American convoy system.⟶

Atlantic OceanU-boatsBattle of the AtlanticConvoysUS NavyGermanyNaval WarfareWar