 Well, our Navy prepared for decades to potentially fight the Soviet Union, then later Russia and China on the world's waterways. But instead of a global power, our Navy finds itself locked in combat with a shadowy, Iran-backed rebel group based in Yemen. The U.S.-led campaign against the Houthi rebels, overshadowed by the Israel-Hamas war in Gaza, has turned into the most intense running sea battle the Navy has faced since World War II, say our Navy's leaders.