180607-N-WF810-003 USTKA, Poland (June 7, 2018) AAV-P7/A1 amphibious assault vehicles transport U.S. Marines assigned to the 26th Marine Expeditionary Unit (26th MEU) and embarked aboard the Harpers Ferry-class dock landing ship USS Oak Hill (LSD 51), during beach landing exercise in support of exercise Baltic Operations (BALTOPS) 2018. BALTOPS is the premier annual maritime-focused exercise in the Baltic Region and one of the largest exercises in Northern Europe that is designed to enhance the flexibility and interoperability among allied and partner nations. (U.S. Navy photo by Mass Communication Specialist 1st Class Adam C. Stapleton/Released)