A U.N.-adopted nuclear ban treaty is now just one step away from entering into force as 49 countries and regions have ratified the pact with a required threshold of 50, the United Nations said Friday.Jamaica and Nauru are the latest countries to complete the ratification procedures, the United Nations said. The Treaty on the Prohibition of Nuclear Weapons, adopted in 2017, will enter into force 90 days after it has been ratified by at least 50 countries and regions.Although the pact will not be able to legally require nuclear power states to get rid of their arsenals, the launch of the worl…READ FULL ARTICLE