160725-N-YM856-104 SHIROKY LAN, Ukraine (July 25, 2016) Utilitiesman 1st Class Luis Alarcon, assigned to Naval Mobile Construction Battalion 133 shows Ukrainian Marines how to place pickets for a concertina wire structure during Sea Breeze 2016. Sea Breeze is a multinational exercise co-hosted by Ukraine and the United States and seeks to enhance interoperability with Black Sea and regional partners and strengthen regional security through air, land and sea components, which tests forces’ capabilities throughout the full spectrum of operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Brittney Cannady/Released)