As an Amazon associate, Military.com earns from qualifying purchases. Former Navy Adm. James Stavridis has worn a lot of hats in his life -- both literally and figuratively. As if being a former NATO supreme allied commander wasn't enough, he's also a national security analyst for NBC News, a vice chair of the Carlyle Group global investment firm and, now, a prolific author. His latest book, " The Restless Wave ," hit bookstores in October 2024, a mere six months after his book, " 2054 ," was