Meanwhile, Begin's government provided incentives for Israelis to settle in the occupied West Bank, increasing friction with the Palestinians in that area. The Basic Law: Jerusalem, Capital of Israel, passed in 1980, was believed by some to reaffirm Israel's 1967 annexation of Jerusalem by government decree, and reignited international controversy over the status of the city. No Israeli legislation has defined the territory of Israel and no act specifically included East Jerusalem therein. In 1981 Israel effectively annexed the Golan Heights, although annexation was not recognized internationally. The international community largely rejected these moves, with the UN Security Council declaring both the Jerusalem Law and the Golan Heights Law null and void. Israel's population diversity expanded in the 1980s and 1990s. Several waves of Ethiopian Jews immigrated to Israel since the 1980s, while between 1990 and 1994, immigration from the post-Soviet states increased Israel's population by twelve percent.