PARIS—France and Britain will submit a resolution to an emergency United Nations meeting due Monday on Afghanistan proposing a safe zone in Kabul to try and protect people trying to leave the country, French President Emmanuel Macron said on Sunday. “Our resolution proposal aims to define a safe zone in Kabul, under UN control, which would allow humanitarian operations to continue,” Macron told French newspaper Le Journal du Dimanche (JDD) in an interview published on Sunday. UN Secretary-General Antonio Guterres is convening a meeting on Afghanistan with the UN envoys for Britain, France, the United States, China, and Russia—the Security Council’s permanent, veto-wielding members. Macron said on Saturday that France was holding preliminary discussions with the Taliban about the humanitarian situation in Afghanistan and the possible evacuation of more people from the country. U.S. military forces, which have guarded the airport in Kabul, are due to withdraw by a Tuesday …