 Complete the following phrase:  In 1939, frequent border violations by Germany took place, and on 25 August, Germany halted international rail transport. On 1 September 1939, the day of the German invasion of Poland, which marked the beginning of World War II, at dawn, the Germans invaded the town, which was recaptured by the Poles in the morning, however, it soon fell to Germany. During the German occupation, the Polish population was subjected to 