The Arab-Israeli conflict is a long-lasting and complicated dispute between Israel and the Palestinians over land and political power in the region. The conflict began in the early 20th century due to large numbers of Jewish immigrants settling in Ottoman Palestine and Britain's support for a Jewish homeland there. This led to the establishment of Israel in 1948 and subsequent wars between Israel and its Arab neighbors. Key ongoing issues include Palestinian statehood, the status of Jerusalem, Israeli settlements, and Palestinian refugees. While peace agreements have been attempted, many core issues remain unresolved.