Aircraft fly in support of Arctic Challenge 2017
F-15C Eagles from the 493rd Fighter Squadron, Royal Air Force Lakenheath, England, wait to begin the first day of Arctic Challenge 2017 at Rovaniemi Air Base, Finland, May 22. The U.S. shares a commitment to promote peace and stability, and seeks opportunities such as participating in ACE 17 to continue developing its strong relationships with European allies and partners. (U.S. Air Force photo/Airman 1st Class Abby L. Finkel)