Marine forms new fighter jet squadron SAN DIEGO (AP) — The Marine Corps is forming the first squadron of pilots to fly the next-generation strike fighter jet, months after lawmakers raised concern that there was a rush to end the testing of an aircraft hit with technical problems. So far, two veteran pilots of the 3rd Marine Aircraft Wing have been trained to fly the F-35B. They are becoming the first members of the Marine Fighter Attack Squadron 121 that will debut Tuesday at a ceremony at the Marine Corps Air Station in Yuma, Ariz. The first F-35B arrived Friday, and 15 more are slated to arrive over the next year.