On board the USS Dwight D. Eisenhower in the Red Sea off the coast of Yemen there are no training missions. Each takeoff is a launch into combat. "We are in constant self-defense out here," said Rear Admiral Marc Miguez, Commander Strike Group 2. Crews are within Houthi striking distance. "They're a scrappy group that, tries very hard with what they have," said Capt. Marvin Scott, Commander Air Wing 3.