NATO should at least shoot down missiles and drones which enter their sovereign airspace. Save Ukrainian lives and structures. Would also be actual experience of shooting down such actual enemy hardware in their own airspace. No simulation, no controlled environment. Would also train their AI for real.

Such will give the Ukrainian pilots valuable experience before doing riskier missions against aircrafts and other riskier ground attacks.

About time.

• Nation's Pride, in Inglourious Basterds. "Who wants to send a message to Germany?!" ~Fredrick Zoller

• "I'd buy that for a dollar." in RoboCop.

I prefer to rewind time with me along, be young again, that kind of time travel. Of course with my knowledge and memories of up to before my "time travel", be retained. I could only remember what I could any way. The future would surely not happen exactly as the same before. Live a new younger life, a seemingly fresh restart at an early point in my life.