NATURALIZATION CEREMONY President Barack Obama participates in a naturalization ceremony at the War Memorial of Korea in Seoul, April 25, 2014. Walter Haith, director of the U.S. Citizenship and Immigration Services for the Seoul field office, calls the name of each candidate, and Robert Daum, deputy district director of the agency's Asia-Pacific district, administers the oath of allegiance. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 830339-A-JUM17-993.jpg Photo Gallery