Chronology of World War II
Mass graves uncovered in Katyn Forest
Monday, April 12, 1943 www.onwar.com

Germans show local Poles evidence from Katyn massacreIn Occupied Poland... The Germans announce the discovery of a group of mass graves in the Katyn Forest. The bodies of 4100 Polish officers killed by the Soviets during their occupation of the region, are found.

In Tunisia... The retreating Axis forces reach Enfidaville.

In New Guinea... Port Moresby is attacked by 174 Japanese aircraft in their ongoing offensive. Little significant damage is done.


This chronological study of the Second World War provides a comprehensive day-by-day account of WWII. While focused on the military history of the war, with an emphasis on the battles and campaigns fought, the timeline includes social and political history as well. Some Holocaust related events are already recorded and additional updates are pending. In so far as possible, the images included in this presentation are pictures from the given days. Additional information and images are welcome through the feedback form found on the index.