Which city in central Niger was where weapons were burned in September 2000 to commemorate a peace agreement?
Concord Day:  The final peace agreement was celebrated with a "Flame of Peace" in which weapons were burned in Agadez on 25 September 2000, a date that is also commemorated each year in some communities. Agadez: Agadez, formerly spelled Agades, is the largest city in central Niger, with a population of 118,244 (2012 census).
Agadez