More countries using advanced F-35 fighter jets could free up F-16s for Ukraine, former Lockheed Martin exec says

• More militaries are turning to F-35s for their air forces, a former Lockheed Martin exec said.
• Tom Burbage told Newsweek that the adoption of F-35s frees up F-16s for air forces like Ukraine's.
• Ukraine has repeatedly asked for F-16s, but its allies have moved slowly to hand them over.

Militaries are increasingly turning to advanced F-35 fighter jets, and this is freeing up F-16 jets that could be sent to Ukraine, a former executive at Lockheed Martin told Newsweek.