This week NATO issued an official invitation to Montenegro to join its alliance. The offer comes amidst the growing tensions between Russia and Turkey (Turkey is a member of NATO). Russia threatened “retaliatory actions.” Within Montenegro, the public is divided. The country has a large Russian population and was also bombed by NATO during the Kosovo war. We’ll discuss the implications of an expanded NATO with Ambassador Ivo H. Daalder is president of The Chicago Council on Global Affairs. He served as the US Permanent Representative to NATO from 2009 to 2013. (Photo: Flickr/NATO North Atlantic Treaty Organization)