International Day of Peace is observed by United Nations on :
International Day of Peace is observed by United Nations on :
[A]August 21
[B]August 23
[C]September 21
[D]September 23
September 21
International Day of Peace is observed by United Nations on :
[A]August 21
[B]August 23
[C]September 21
[D]September 23
September 21