28 May 1942
  • Japanese Navy changed code books. ww2dbase [CPC]
  • American freighter Sylvan Arrow (of the Standard Oil and Transportation Company), damaged by German submarine U-155 on 20 May 1942, sank in the Caribbean Sea while under tow. On the same day, U-103 sank US tanker New Jersey 90 miles southwest of Grand Cayman island (41 survived) in the Caribbean Sea, U-502 sank US ship Alcoa Pilgrim (31 were killed, 9 survived) in the Caribbean Sea, and U-106 sank British ship Mentor (4 were killed, 82 survived) in the Gulf of Mexico. ww2dbase [Main Article | CPC]
  • A force of about 500 US Army troops moved from Efate to Espiritu Santo, New Hebrides to build an airfield in support of the proposed Solomon Islands landings. ww2dbase [CPC]
  • Allied convoy PQ-16 encountered heavy fog but managed to remain with each other by keeping eyes on fog buoys towed by the ship immediately in front of each trailing ship. ww2dbase [Main Article | CPC]
  • German submarine U-155 sank Dutch ship Poseidon 150 miles east of Martinique; all 32 aboard survived. Far to the northeast, U-506 sank British ship Yorkmoor with 55 round from her deck gun; all 45 aboard survived. ww2dbase [Main Article | CPC]
  • Seaplane tender USS Tangier conducted a small raid on Tulagi in the Solomon Islands; during the attack, she transmitted radio messages that were purposefully composed as if she was a fleet carrier, thus giving the Japanese a false impression that the US was still operating fleet carriers in the South Pacific when in actuality all fleet carriers had been shifted back to the Hawaiian Islands. ww2dbase [Main Article | CPC]
  • USS Yorktown moved into Dry Dock No. 1 at Pearl Harbor Navy Yard, US Territory of Hawaii at 0645 hours. ww2dbase [Main Article | Facility | CPC]
  • USS Hornet departed Pearl Harbor, US Territory of Hawaii for Midway Atoll. ww2dbase [Main Article | Facility | CPC]
  • USS Enterprise departed Pearl Harbor, US Territory of Hawaii for Midway Atoll. ww2dbase [Main Article | CPC]
Japan Libya
  • The Allies began counterattacks two days after the Axis offensive began in Libya, forming the "Cauldron" that attempted to envelope Axis forces on three sides. British General Neil Ritchie still believed that the feint that the Axis forces launched on 26 May 1942 near the coast to be the main attack, however, thus refusing to send additional tanks to the southern end of the Gazala Line. ww2dbase [Main Article | CPC]
Pacific Ocean
  • USS Salmon sank Japanese passenger-cargo ship Ganges Maru in the South China Sea. ww2dbase [Main Article | CPC]
  • Alfons Bentele was transferred away from Majdanek Concentration Camp in occupied Poland. ww2dbase [Main Article | CPC]
  • Semyon Timoshenko ordered all offensives in the Kharkov, Ukraine region to cease, thus effectively conceding the Second Battle of Kharkov and granting victory to the German Unternehmen Fridericus I. When all actions were wrapped up, the Germans would count over 200,000 prisoners of war, 1,200 tanks, and 2,000 artillery pieces captured. ww2dbase [Main Article | TH, CPC]
United Kingdom
  • Winston Churchill despatched Lord Louis Mountbatten, the British Chief of Combined Operations, to Washington DC, United States to persuade the Americans that an invasion across the English Channel into occupied France would, at this time, only lead to disaster. As an alternative he proposed an Anglo-American landing in French North Africa later in the year. Mountbatten was authorised to tell the Americans that Great Britain would only agree to a 1942 attack across the Channel if the Soviets were to be in immediate danger of surrendering. ww2dbase [Main Article | AC]
Photo(s) dated 28 May 1942
Camacho of Mexico delcared war on the Axis powers, 28 May 1942Kittyhawk fighters of the American Volunteer Group flying near the Salween River Gorge on the Chinese-Burmese border, 28 May 1942

28 May 1942 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
"We no longer demand anything, we want war."

Joachim von Ribbentrop, German Foreign Minister, Aug 1939