The NATO summit in Brussels got off to a shaky start Wednesday, as US President Donald Trump repeated calls for increased military spending from member nations and blasted Germany for being “a captive of Russia” for its support of a Baltic Sea gas pipeline. But NATO leaders, including the US President, did come to an agreement over the alliance’s deterrence and defense capabilities. The World’s Marco Werman interviews Ivo Daalder, who served as US ambassador to NATO between 2009 and 2013.