As the service focuses more on the Asia-Pacific, an area dominated by rivers and shallow areas — compared with the Persian Gulf and other areas in which the Navy has operated in the last few decades — there is a very clear push to make brown and green water assets a bigger part of the fleet, said Bryan Clark, a senior fellow at the Center for Strategic and Budgetary Assessments. “I think you’re going to see a lot of e ort to bring green and brown water forces into being able to operate more in the green and the blue water,” Clark said. “You can put a small number of weapons on each platform, and have each platform be a sensor, and kind of knit them together.”