Restored as a nation in 1918 but ravaged by two world wars, Poland suffered tremendously throughout the course of the 20th century. World War II was particularly damaging, as Poland’s historically strong Jewish population was almost wholly annihilated in the Holocaust. Millions of non-Jewish Poles also died, victims of more partition and conquest. With the fall of the Third Reich, Poland effectively lost its independence once again, becoming a communist satellite state of the Soviet Union. Nearly a half century of totalitarian rule followed, though not without strong challenges on the part of Poland’s workers, who, supported by a dissident Catholic Church, called the economic failures of the Soviet system into question.