The United States rejected a surprise offer by NATO ally Poland on Tuesday to transfer its Russian-made MiG-29 fighter jets to a U.S. base in Germany as a way to replenish Ukraine's air force in its defence against invading Russian forces.
source https://www.cbc.ca/news/world/poland-mig-29-fighter-jets-u-s-ukraine-1.6377889?cmp=rss