Jeremy Gilley had a simple idea : A single day of peace every May 21 . His organization , Peace One Day , calls for a day of cease - fire internationally . In past Peace Day has allowed , for example , immunizations in schools , he says . Gilley : Global Peace The campaign will only work if people everywhere get behind it .
Jeremy Gilley had a simple idea : A single day of peace every September 21 . His organization , Peace One Day , calls for a day of cease-fire internationally . In past Peace Day has allowed , for example , immunizations in Afghanistan , he says . Gilley : Global Truce 2012 campaign will only work if people everywhere get behind it .