Following World War II, the British withdrew from their mandate of Palestine, and the UN partitioned the area into Arab and Jewish states, an arrangement rejected by the Arabs. Subsequently, the Israelis defeated the Arabs in a series of wars without ending the deep tensions between the two sides. The territories Israel occupied since the 1967 war are not included in the Israel country profile, unless otherwise noted. On 25 April 1982, Israel withdrew from the Sinai pursuant to the 1979 Israel-Egypt Peace Treaty. In keeping with the framework established at the Madrid Conference in October 1991, bilateral negotiations were conducted between Israel and Palestinian representatives and Syria to achieve a permanent settlement. Israel and Palestinian officials signed on 13 September 1993 a Declaration of Principles (also known as the "Oslo Accords") guiding an interim period of Palestinian self-rule. Outstanding territorial and other disputes with Jordan were resolved in the 26 October 1994 Israel-Jordan Treaty of Peace. In addition, on 25 May 2000, Israel withdrew unilaterally from southern Lebanon, which it had occupied since 1982. In April 2003, the US working in conjunction with the EU, UN, and Russia  - took the lead in laying out a roadmap to a final settlement of the conflict by 2005, based on reciprocal steps by the two parties leading to two states, Israel and a democratic Palestine. However, progress toward a permanent status agreement was undermined by Israeli-Palestinian violence between September 2003 and February 2005. An Israeli-Palestinian agreement reached at Sharm al-Sheikh in February 2005, along with an internally-brokered Palestinian cease-fire, significantly reduced the violence. In the summer of 2005, Israel unilaterally disengaged from the Gaza Strip, evacuating settlers and its military while retaining control over most points of entry into the Gaza Strip. The election of HAMAS in January 2006 to head the Palestinian Legislative Council froze relations between Israel and the Palestinian Authority (PA).