The swirl of events and factors that define the present day—from emerging potential adversaries overseas to ongoing financial strife and economic downsizing on the home front—are creating all sorts of problems for the U.S. military. But those myriad challenges can also provide the keys to revising how the Navy and Marine Corps will train and fight in the future. Teaming up this month in a first for Proceedings , Chief of Naval Operations Admiral Jonathan Greenert and Commandant of the Marine Corps General James F. Amos share their vision for our nation’s naval forces. The way forward will require adaptability, flexibility, and avoiding the urge to “push back on the trends we encounter, but instead to leverage the opportunities they present.” They remind us that sea control and power projection constitute a team sport, and that team must be “smoothly integrated and easily adaptable to new situations.” The good news is that the Navy and Marine Corps have been here before and know what must be done. Just as the General Board developed and tested concepts between the world wars, today the Naval Board will guide the intellectual effort to develop new warfighting techniques. As defense spending decreases and our focus shifts away from Afghanistan, the Navy-Marine Corps team will be asked to play a greater role in deterrence, crisis response, and maritime security. They’ll need to be ready.