International Day of Peace, 21 September. "On this International Day of Peace, let us pledge to teach our children the value of tolerance and mutual respect. Let us invest in the schools and teachers that will build a fair and inclusive world that embraces diversity. Let us fight for peace and defend it with all our might." UN Secretary-General Ban Ki-moon
UN: Each year the International Day of Peace is observed around the world on 21 September. The General Assembly has declared this as a day devoted to strengthening the ideals of peace, both within and among all nations and peoples.