We would like to thank Crown Family Philanthropies, Abe and Ida Cooper Foundation, the Claims Conference, EVZ, and BMF for supporting the ongoing work to create content and resources for the Holocaust Encyclopedia. View the list of donor acknowledgement.
![Poles walk among the ruins of besieged Warsaw. [LCID: 47270]](https://encyclopedia.ushmm.org/images/thumb/2adc847c-f75f-4897-ad13-554b935e0949.jpg)
1939년 9월 1일 독일군이 폴란드를 침공하자 제2차 세계대전이 촉발되었다. 독일의 침략에 대응하여 영국과 프랑스는 나치 독일에 선전포고한다.
![Women survivors huddled in a prisoner barracks shortly after Soviet forces liberated the Auschwitz camp. [LCID: 31450b]](https://encyclopedia.ushmm.org/images/thumb/8fdec1b8-47fa-40f1-9a27-06e7262bad5e.jpg)
![Blanka Rothschild holds one of her prewar family photographs. [LCID: athbr039]](https://encyclopedia.ushmm.org/images/thumb/11721704-922d-4af9-8e09-16ab9e4123c5.jpg)
