On March 26th, the coronavirus accomplished what no foreign adversary has been able to do since the end of World War II: it forced an American aircraft carrier, the USS Theodore Roosevelt, to suspend patrol operations and shelter in port. By the time that ship reached dock in Guam, hundreds of sailors had been infected with the disease and nearly the entire crew had to be evacuated. As news of the crisis aboard the TR (as the vessel is known) became public, word came out that at least 40 other U.S. warships, including the carrier USS Ronald Reagan and the guided-missile destroyer USS Kidd, were suffering from Covid-19 outbreaks. None of these approached the scale of the TR and, by June, the Navy was again able to deploy most of those ships on delayed schedules and/or with reduced crews. By then, however, it had become abundantly clear that the long-established U.S. strategy of relying on large, heavily armed warships to project power and defeat foreign adversaries was no longer fully sustainable in a pandemic-stricken world.