Simplify the following text for a Grade 6 native English-speaking person.
Original: In 1981 , Israel passed the Golan Heights Law , which applied Israeli `` laws , jurisdiction and administration '' to the Golan Heights .
Simplified: The United Nations has voted to ask Israel to pull its troops out of the Golan Heights . Syria and Israel still have not signed a peace treaty from that war , mostly because of the issue of the Golan .