Three countries completed ratification procedures for a U.N.-adopted nuclear ban treaty Thursday, bringing the number of such countries and regions to 43 with a total of 50 required for the pact to enter into force, a U.N. source said.Ireland, Nigeria and Niue became the latest signatories of the Treaty on the Prohibition of Nuclear Weapons, adopted in 2017, on the 75th anniversary of the U.S. atomic bombing of Hiroshima on August 6, 1945.While the addition of signatories is likely to raise hopes for an early enforcement of the nuclear ban treaty, its potential effectiveness remains uncerta…READ FULL ARTICLE