If the international court of justice says Israeli settlements in Palestinian territories are illegal?

The International Court of Justice (French: Cour internationale de justice; commonly referred to as the World Court or ICJ) is the primary judicial organ of the United Nations. It is based in the Peace Palace in The Hague, Netherlands. Its main functions are to settle legal disputes submitted to it by states and to provide advisory opinions on legal questions submitted to it by duly authorized international organs, agencies, and the UN General Assembly. The ICJ should not be confused with the International Criminal Court, which potentially also has global jurisdiction.