ປ. ໂອບາມາ ຢ້ຽມຢາມ ຢູໂຣບ

U.S. President Barack Obama and Polish President Bronislaw Komorowski show the peace sign at a Freedom Day event at Royal Square in Warsaw, June 4, 2014.

U.S. President Barack Obama speaks during a ceremony marking the "Freedom Day" anniversary in Warsaw's Castle Square, June 4, 2014.

U.S. President Barack Obama speaks during a ceremony marking the Freedom Day anniversary in Castle Square in Warsaw, June 4, 2014.

U.S. President Barack Obama shakes hands with Ukraine's President-elect Petro Poroshenko during their meeting in Warsaw, June 4, 2014.

U.S. President Barack Obama and Polish President Bronislaw Komorowski walk away after a group photo with Central and Eastern European Leaders in Warsaw, June 3, 2014.

U.S. President Barack Obama is welcomed by Polish Prime Minister Donald Tusk in Warsaw, June 3, 2014.

U.S. President Barack Obama and Secretary of State John Kerry smile during their bilateral meeting with Poland's Prime Minister Donald Tusk in Warsaw, June 3, 2014.

U.S. President Barack Obama addresses a joint press conference with Poland's President Bronislaw Komorowski at Belveder Palace in Warsaw, June 3, 2014.

U.S. President Barack Obama and Poland's President Bronislaw Komorowski walk to make statements after meeting U.S. and Polish troops at an event featuring F-16 fighter jets in Warsaw, June 3, 2014.