18 Apr 1940
  • British submarine HMS Sterlet disappeared off Norway. It was either sunk by German anti-submarine trawlers UJ-125, UJ-126, and UJ-128, or sunk after hitting a mine. ww2dbase [TH]
  • The German submarine U-99 was commissioned with Captain Otto "Smiling Otto" Kretschmer in command. U-99 would be responsible for sinking 282,000 tons of Allied shipping before being cornered and sunk in Mar 1941. Depth charged to the surface and sunk, U-99's captain and crew were taken prisoner by Donald Macintyre of the corvette HMS Walker. ww2dbase [AC]
Atlantic Ocean
  • Seeadler laid anti-submarine mines in the Kattegat between Denmark and Sweden. ww2dbase [Seeadler | Kattegat | CPC]
  • The Norwegian government declared war on Germany after several days of fighting. On the same day, German troops advanced past Oslo, but were held up by Norwegian forces north of the city in the village of Bagn. The British 148th Brigade arrived in Ã…ndalsnes overnight; commanding officer Brigadier Morgan was given conflicting orders, one ordering him to march north to Trondheim, while the other ordered him to march south to support Norwegian troops in the Gudbrandsdal and Østerdal valleys north of Oslo. Meanwhile, troops of the German 181st Infantry Division began to arrive at Trondheim as reinforcements via aircraft, transport ships, and submarines. ww2dbase [Invasion of Denmark and Norway | TH]
Photo(s) dated 18 Apr 1940
Émile Bertin off Norway, Apr 1940

Timeline Section Founder: Thomas Houlihan
Contributors: Alan Chanter, C. Peter Chen, Thomas Houlihan, Hugh Martyr, David Stubblebine
Special Thanks: Rory Curtis

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Famous WW2 Quote
"Since peace is now beyond hope, we can but fight to the end."

Chiang Kaishek, 31 Jul 1937