U.S. Air Force Airman 1st Class Hillary Koech, 28th Bomb Wing bioenvironmental engineering technician, talks about his journey to become a U.S. citizen through the Air Force at Ellsworth Air Force Base, May 23, 2024. Originally from Kenya, Koech spent some time living in the U.S. before joining the military, where he went through the Naturalization process that culminated with taking the Oath of Allegiance. (U.S. Air Force Video by Airman 1st Class Brittany Kenney) More