170713-N-DD899-022 SHIROKY LAN, Ukraine (July 13, 2017) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 1, level a sentry tower during exercise Sea Breeze 2017 at Shiroky Lan training base. Sea Breeze is a U.S. and Ukraine co-hosted multinational maritime exercise held in the Black Sea and is designed to enhance interoperability of participating nations and strengthen maritime security within the region. (U.S. Navy photo by Mass Communication Specialist 1st Class Sharay Bennett/Released)