Each year the International Day of Peace is observed around the world on September 21. The General Assembly has declared this as a day devoted to strengthening the ideals of peace, both within and among all nations and people. To mark this important day, HI-USA has started the first-ever network-wide effort, Sleep for PeaceEach year the International Day of Peace is observed around the world on September 21. The General Assembly has declared this as a day devoted to strengthening the ideals of peace, both within and among all nations and people. To mark this important day, HI-USA has started the first-ever network-wide effort, Sleep for PeaceEach year the International Day of Peace is observed around the world on September 21. The General Assembly has declared this as a day devoted to strengthening the ideals of peace, both within and among all nations and people. To mark this important day, HI-USA has started the first-ever network-wide effort, Sleep for PeaceEach year the International Day of Peace is observed around the world on September 21. The General Assembly has declared this as a day devoted to strengthening the ideals of peace, both within and among all nations and people. To mark this important day, HI-USA has started the first-ever network-wide effort, Sleep for PeaceEach year the International Day of Peace is observed around the world on September 21. The General Assembly has declared this as a day devoted to strengthening the ideals of peace, both within and among all nations and people. To mark this important day, HI-USA has started the first-ever network-wide effort, Sleep for Peace