190515-N-GQ458-1061 GULF OF ALASKA (May 15, 2019) Chief Aviation Electronics Technician Justin Calderone, assigned to the “Blue Diamonds” of Strike Fighter Squadron (VFA) 146, observes flight operations on the flight deck of the aircraft carrier USS Theodore Roosevelt (CVN 71) while participating in Exercise Northern Edge 2019. Northern Edge is one in a series of U.S. Indo-Pacific Command exercises in 2019 that prepares joint forces to respond to crisis in the Indo-Pacific region. (U.S. Navy photo by Mass Communication Specialist 3rd Class Austin J. Breum/Released)