– Proceedings – Much has been written about the emergence of “hybrid warfare” in a variety of global scenarios, notably in the Russian invasion of Ukraine and annexation of Crimea. To date, this largely has been confined to land warfare, in terms of both actual practice and theoretical discussion. That is about to change, and we will see the emergence of maritime hybrid warfare over the coming decades, perhaps sooner. Now is the time for the U.S. Navy to begin thinking about these scenarios and how to counter them, both for our own forces and on behalf of allies, partners, and friends in the global maritime coalition.