From the 1970s through to the 1990s, Sharon championed construction of Israeli settlements in the West Bank and Gaza Strip. He became the leader of the Likud in 2000, and served as Israel's prime minister from 2001 to 2006, during the Al-Aqsa Intifada. As Prime Minister, Sharon orchestrated Israel's unilateral disengagement from the Gaza Strip in 2004–05. Facing stiff opposition to this policy within the Likud, in November 2005 he left Likud to form a new party, Kadima. He had been expected to win the next election and was widely interpreted as planning on "clearing Israel out of most of the West Bank", in a series of unilateral withdrawals. After suffering a stroke on 4 January 2006, Sharon remained in a permanent vegetative state until his death in January 2014.