NATO heads of state will attend what's described as a working dinner at Soldier Field on May 20.
That same day a dinner will be held at the Field Museum for national leaders whose troops are part of the NATO force in Afghanistan.
An evening reception is also planned at Navy Pier for diplomats who are not attending that dinner.
Also on May 20, first lady Michelle Obama will host an afternoon event for spouses of NATO leaders at the Gary Comer Youth Center.
