Crew members from the Coast Guard Atlantic Strike Team, Coast Guard Sector Buffalo and Coast Guard Sector Detroit return from placing more than 1,200 feet of boom Aug. 22, 2017 during an exercise in the St. Lawrence Seaway in Clayton, New York. The exercise was part of Maritime Disruption 2017, designed to test the CANUSLAK agreement and other regional response plans and strategies. (U.S. Coast Guard photo by Petty Officer 2nd Class Christopher M. Yaw)