To support their argument, the anti-Israel faction in the White House pointed to two facts. First, the establishment and maintenance of a Jewish state required at least a partial displacement and disenfranchisement of non-Jews. Second, though not free of bloodshed, relations between Jews and Arabs in the Palestine area were relatively peaceful before the establishment of Zionist settlements there in the early 20th century. The first acts of political violence against Jews in the region took place in 1920, when local Arabs responded to the influx of tens of thousands of Zionist settlers by attacking Jewish settlements in Galilee and rioting in the streets of Jerusalem.