PACIFIC OCEAN (July 18, 2017) - Sailors assigned to Helicopter Submarine Maritime (HSM) 47 Detachment 4 "Players" stand by on the flight deck of USS Chaffee (DDG 90) for the start of the cross deck exercise between ships participating in UNITAS 2017. UNITAS is an annual exercise that focuses on strengthening our existing regional partnerships and encourages establishing new relationships through the exchange of maritime mission-focused knowledge and expertise throughout the exercise. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael Hendricks/Released)