Battle of the Bzura, also known as Battle of Kutno to the Germans, ended in Polish defeat; it was the largest battle of the Polish campaign during which more than 18,000 Polish troops and about 8,000 German troops were killed. At Lvov, over 210,000 Poles surrender to the Soviets, but at the Battle of Kodziowce the Soviets suffered heavy casualties. Also on this day, the Soviet NKVD began gathering Polish officers for deportation
