The United States, Britain and France are among almost 40 countries that will not join talks on a nuclear weapons ban treaty starting at the United Nations on Monday, said U.S. Ambassador Nikki Haley. Haley told reporters the countries skipping the negotiations are instead committed to the Non-Proliferation Treaty, which entered into force in 1970 and is aimed at preventing the spread of nuclear weapons and weapons technology. “There is nothing I want more for my family than a world with no nuclear weapons. But we have to be realistic. Is there anyone that believes that North Korea would agree to a ban on nuclear weapons?” Haley told reporters.