Which historical factors contributed to the establishment of the modern state of Israel? A. The rescue of Jewish troops from France. B. The attempted genocide of European Jews in the Holocaust. C. The successful Reconquista of Spain. D. The failure of the Crusades.

B. The attempted genocide of European Jews in the Holocaust.

The Holocaust was a significant factor that led to the establishment of the modern state of Israel. The genocide of six million Jews during World War II highlighted the need for a Jewish homeland where Jews could live safely and freely. This tragedy galvanized support for the Zionist movement and played a crucial role in the international community's decision to establish the state of Israel in 1948.