US President Barack Obama (left) and Polish President Bronislaw Komorowski (2nd L) walk past an F-16 fighter upon Obama's arrival at Chopin Airport in Warsaw, 3 June 2014
US President Barack Obama (left) and Poland's President Bronislaw Komorowski (2nd L) walk past an F-16 fighter upon Obama's arrival at Chopin Airport in Warsaw, 3 June 2014