Six-Day War
After the World War I, Zionist ideals started to become a reality. Jews from Europe started moving to Palestine in the 1920s, when the territory was still under the British mandate. The migration led to conflict with the native Arabs. The foundation of the State of Israel in 1948 was not recognized by the Arab states, and its creation made Egypt go to war in 1948 and 1949 and become Israel's main enemy.