Poland
Front
(91)1939
September
- 01
- Key eventGermany invades PolandAt dawn on 1 September 1939 the Wehrmacht attacked Poland from the north, west and south without declaring war. The Slovak army struck alongside the Germans.
- The defence of Westerplatte beginsAt 4.45 a.m. on 1 September 1939 the battleship Schleswig-Holstein shelled the Polish depot on Westerplatte. Its garrison beat off two assaults that day.
- The bombing of WieluńOn the morning of 1 September 1939 Luftwaffe dive-bombers destroyed central Wieluń, a town with no troops or air defences. The first bombs hit its hospital.
- The defence of the Polish Post Office in GdańskOn 1 September 1939 Polish postal workers held the Polish Post Office in Gdańsk for about 14 hours. After their surrender 38 were sentenced to death and shot.
- Operation TannenbergOn 1 September 1939 Security Police and SD Einsatzgruppen followed the Wehrmacht into Poland, carrying lists of names to “neutralise” Poland’s leading strata.
- 03
- Bloody Sunday in BydgoszczOn 3 September 1939 shooting broke out in Bydgoszcz amid retreating troops. Several hundred Germans died, and propaganda turned it into “Bloody Sunday”.
- The sinking of Wicher and GryfOn 3 September 1939 German dive bombers sank the destroyer Wicher and the minelayer Gryf in the naval port of Hel, Poland’s largest warships in the Baltic.
- The Legion of Czechs and SlovaksOn 3 September 1939 President Mościcki decreed a Legion of Czechs and Slovaks. Some 1,000 refugees from Czechoslovakia were to fight Germany beside the Poles.
October
November
1940
1941
1942
February
March
May
July
- 22
- Key eventThe Great Deportation in the Warsaw GhettoOn 22 July 1942 the Germans began deporting Jews from the Warsaw Ghetto to Treblinka. By 21 September they had murdered at least 254,000 people there.
- The Treblinka extermination campOn 22 July 1942 the first transport left Warsaw for Treblinka II. The next day the camp began operating; the Germans murdered some 800,000–900,000 Jews there.
August
September
December
1943
1944
January
February
July
August
- 06
- Black Sunday in KrakówOn 6 August 1944 the Germans carried out the largest round-up of the occupation in Kraków. Some 6,000–8,000 men were held as hostages in Płaszów camp.
- The Baligród massacreOn 6 August 1944 the UPA unit of “Burlaka” raided Baligród in the Bieszczady and murdered dozens of Polish men. The victims' memorial lists 42 names.