ADAZI, Latvia-Marines with the Black Sea Rotational Force 17.1 stand in formation as the flags of some of the participating nations are raised to the Latvian National Anthem during the opening ceremony of Exercise Saber Strike 17 at Camp Adazi, Latvia, June 3, 2017. The combined training prepares NATO Allies and partners to respond more to regional crises and meet their own security needs by improving the security of borders and countering threats. (U.S. Marine Corps photo by Cpl. Devan Alonzo Barnett/Released)