A group of Japanese high school students seeking nuclear disarmament will send letters of encouragement to 122 countries and regions that have signed or ratified a U.N. treaty banning such weapons set to enter into force this month, it said Friday.In a press conference in Nagasaki, the student peace ambassadors said the letters, written in both Japanese and English, express high expectations of their efforts toward nuclear abolishment.The letters also aim to persuade those that have signed the Treaty on the Prohibition of Nuclear Weapons to take immediate action to ratify the pact.The group…READ FULL ARTICLE