German Chancellor Angela Merkel waits for the Italian Prime Minister Paolo Gentiloni before they review a guard of honor upon Gentilon's arrival at the Chancellery on January 18, 2017 in Berlin, Germany. (Michele Tantussi/Getty Images)
Russian Ambassador to the US Sergey Kislyak (L) leaves after a foreign policy speech by Republican US Presidential hopeful Donald Trump at the Mayflower Hotel April 27, 2016 in Washington, DC.(BRENDAN SMIALOWSKI/AFP/Getty Images)
Soldiers from Estonia, Finland, Great Britain, Latvia, Lithuania, Norway and US participate in the opening ceremony for the international exercise "Saber Strike”, Adazi Training Area, Latvia, June 8, 2015.(Gatis Diezins, RYC/Flickr)