70 years ago on September 1, 1939, without a formal declaration of war, Germany began World War II with invasion of Poland.
Sept. 6th - Battle of Tomaszow Mazowiecki
On September 6th in the region of Tomaszow Mazowiecki Polish 13th infantry division fought 2 German panzer (armoured-tank) divisions of XVI Panzer Corps. After whole day of fighting Germans took the city and Polish forces retreated toward Warsaw.