Video from the F-35 manufacturing floor. LOANED VIDEO

Powerline mechanic Marines from around the Marine Corps ready themselves to become the first group of F-35B aircraft maintainers for the Marine Fighter Attack Squadron 121 station at Marine Corps Air Station Yuma.

The MV-22 Osprey, a multimission aircraft that is used to transport military casualty, cargo, conduct combat and combat support missions, flys out of MCAS-Yuma during training. Video by Ryan Brennecke, Stephanie Sanchez, and Darin Fenger

Marine Fighter Attack Squadron 121, Marine Aircraft Group 13, 3rd Marine Aircraft Wing conducted its first F-35B Lightning II Joint Strike Fighter Short Take off, Vertical Landing aboard MCAS Yuma. LOANED VIDEO/MCAS Yuma, Lance Cpl. Ryan Lampro

Lt. Col. Jeffrey Scott talks about the arrival of the F-35. The VMFA-121 Green Knights will be rededicated today as the first operational F-35B Lightning II squadron at MCAS Yuma.