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18 Apr 1943
  • Lieutenant Philip Cabell Evans was named the commanding officer of HMCS Trillium. ww2dbase [Main Article | CPC]
  • German 17.Armee attempted to eliminate the Soviet bridgehead at Novorossiysk in southern Russia. ww2dbase [Main Article | TH]
  • The Soviet Union claimed that the German Gestapo was responsible for the Katyn Massacre. ww2dbase [Main Article | CPC]
  • 47 P-40 and 12 Spitfire fighters intercepted a large Axis air convoy off Tunisia, shooting down 24 German transport aircraft, 10 German fighters, and some Italian fighters. So many lives were lost that the Germans dubbed the action Palm Sunday Massacre. ww2dbase [Main Article | AC]
Atlantic Ocean
  • The 4,906-ton Norwegian motor tanker Hoegh Carrier had come under German control in 1940 and had served out of Rotterdam, the Netherlands. She was located, attacked, and sunk by British aircraft off Den Helder, the northernmost part of the Netherlands. Two of her crew were killed in the bombing. ww2dbase [HM]
  • The 7,459-ton Panamanian Merchant Steamer Empire Bruce was hit in the stern by a torpedo fired from German submarine U-123 (Horst von Schroeter) whilst sailing 100 mile southwest of Freetown, Sierra Leone. The crew abandoned the ship which was carrying 9,000 tons of linseed and the vessel sank after being hit by two more torpedoes two hours later. The Master, J. Edwards, his 41 crew members and seven gunners were picked up by the British Minesweeper HMS MMS-107 and landed in Freetown the following day. ww2dbase [HM]
  • Admiral William Halsey and General Douglas MacArthur met at Brisbane, Australia. They agreed that the tentative date for the New Georgia invasion was to be 15 May, and that a US Marine Corps defense battalion, a US Navy construction battalion, and a US Army regimental combat team should be transferred to the theater to support the invasion. ww2dbase [Main Article | CPC]
British Western Pacific Territories
  • The two aircraft carrying Admiral Isoroku Yamamoto and Vice Admiral Matome Ugaki took off from Rabaul, New Britain at 0600 hours. Over the island of Bougainville in the Solomon Islands, they were shot down by American fighters over Bougainville in the Solomon Islands, killing Yamamoto. ww2dbase [Main Article | TH, CPC]
Indian Ocean
  • The 8,132-ton British motor tanker Corbis, loaded with 13,000 tons of diesel oil, was struck at 0356 hours by two torpedoes from German submarine U-180 (Werner Musenberg) about 500 miles from Port Elizabeth, South Africa. Another torpedo struck at 0410 hours and stopped the tanker and set her on fire and caused her to sink after a short time. The Germans reported four lifeboats but three of them were swamped; the master, 47 crew members and two gunners were lost. ww2dbase [HM]
  • The 8,007-ton British steam transport ship Manaar was torpedoed and sunk by the Italian submarine Leonardo Da Vinci in the Indian Ocean whilst on route to India from Durban, South Africa. Four crew members were killed and the master was taken prisoner by the Italians. ww2dbase [HM]
Japan Netherlands
  • Robert Johnson flew his first combat mission over the Dutch coast but saw no action. ww2dbase [Main Article | CPC]
  • A transport of 2501 Jews from the ghetto in Thessaloniki, Greece arrived at Auschwitz Concentration Camp in Poland. Only 605 were registered into the camp; the remaining 1,896 were sent to the gas chambers. ww2dbase [Main Article | Facility | CPC]
  • Viktor Abakumov was summoned to meet with Joseph Stalin. ww2dbase [Main Article | CPC]
United Kingdom
  • No. 619 Squadron RAF was formed at RAF Woodhall Spa, Lincolnshire, England, United Kingdom. ww2dbase [Main Article | CPC]
United States
  • Submarine Escolar was launched at Philadelphia, Pennsylvania, United States, sponsored by Mrs. J. Bilisoly Hudgins. ww2dbase [Main Article | CPC]
  • Submarine Dragonet was launched at Philadelphia, Pennsylvania, United States, sponsored by Mrs. J. E. Gingrich. ww2dbase [Main Article | CPC]
US Pacific Islands
  • USS Pollack arrived at Midway Atoll, ending her sixth war patrol. ww2dbase [Main Article | Facility | CPC]
Photo(s) dated 18 Apr 1943
Belleau Wood in the Delaware River off the Philadelphia Navy Yard, Pennsylvania, United States, 18 Apr 1943, photo 1 of 2Belleau Wood in the Delaware River off the Philadelphia Navy Yard, Pennsylvania, United States, 18 Apr 1943, photo 2 of 2; note location of SK, SC, and SG radar and YE aircraft homing beacon antennasLaunching of submarine Dragonet, Philadelphia, Pennsylvania, United States, 18 Apr 1943James Doolittle and fellow raiders at a reunion in North Africa, 18 Apr 1943
See all photos dated 18 Apr 1943

18 Apr 1943 Interactive Map

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
"You ask, what is our aim? I can answer in one word. It is victory. Victory at all costs. Victory in spite of all terrors. Victory, however long and hard the road may be, for without victory there is no survival."

Winston Churchill