After 30 years of shrinking military budgets, air power had become a vulnerability for NATO, but that began changing after the Russian invasion. NATO increased its air patrols along the Russian border and based allied troops and aircraft in four more NATO countries.

In addition, some NATO states are trying to bolster Ukraine’s air power — for the current conflict and to deter Russia in the future — with the United States recently agreeing to let Ukrainian pilots train on American-made F-16 fighter jets.