Direct proof of use
The FIM-92 Stinger was supplied to Ukraine for use in the 2014 Russia-Ukraine War after Russia's full-scale invasion in February 2022. U.S. Defense Department releases listed 800 Stinger anti-aircraft systems in the March 16, 2022 drawdown package and more than 600 Stinger systems in earlier assistance committed to Ukraine.
The missiles were part of Ukraine's short-range air-defense layer rather than a stand-alone air-defense system. A March 2022 Defense Department article described Ukrainian air defense as combining aircraft with short- and long-range surface-to-air missile systems, and reported that the same security package included 800 Stinger anti-aircraft systems.
Sources: DoD April 2022 Ukraine Security Assistance Fact Sheet, DoD March 2022 Russian Air Activity Article
Air-defense role
In Ukrainian service, Stingers were used for low-altitude air defense against aircraft, helicopters, and similar short-range aerial threats. Reuters-syndicated reporting in May 2022 said the shoulder-fired missiles were in high demand in Ukraine and had helped stop Russian air assaults.
U.S. officials described the broader result as a layered Ukrainian air-defense problem for Russian aviation. In April 2023, General Mark Milley said Russian aircraft were being shot down and that Ukraine needed air defenses from short to long range to protect front-line forces; the statement addressed Ukraine's air-defense system as a whole rather than attributing every shootdown to Stinger.
Sources: Al Jazeera Reuters Stinger Replenishment Report, DoD April 2023 Ukraine Defense Contact Group Transcript