send me the airfare
Don't do it Jon. He will just spend it all on Lucky Pink Elephant Popcorn and beer and then take a nap.
No airfare is needed. Anyone in Western Europe, Cananda, or the United States who would like to volunteer to defend Ukraine merely needs to present themselves at any Ukrainian embassy or consulate. Providing your own kit is preferred, but not required. Rudimentary training and transportation to the front will be provided. President Volodymyr Zelenskyy appreciates your heroic sacrifice, and your posts here will of course be dearly missed.