Info from the site:
Along with being designated by the UN as the International Day of Peace, September 21 is also a day of Global Ceasefire. By acknowledging a unified day without violence, a Global Ceasefire can provide hope for citizens who must endure war and conflict; it proves that worldwide peace is possible. A cessation of hostilities for 24 hours can also enable relief workers to reach civilians in need with food, water, and medical supplies.
KABUL, Afghanistan (AP) — The U.N. said guns fell silent across much of Afghanistan on Sunday for an international peace day that saw pledges by the U.S., NATO, the Afghan government and the Taliban to halt attacks.
The U.N. said tens of thousands of international and Afghan soldiers as well as Taliban militants “all stood down from offensive military operations in support of the biggest International Peace Day effort that Afghanistan has known.”