The Su-34 Fullback bomber, a twin-seater with a distinctive “duckbill” nose cone, has become a mainstay of Russian air operations in Ukraine.

However, mounting losses of these sophisticated aircraft raise concerns about Russia’s ability to maintain air superiority and highlight its challenges in the protracted conflict.

Open-source intelligence (OSINT) reports compiled by investigative groups and media outlets suggest Russia has lost as many as 26 Su-34s since the war’s outbreak in February 2022.

Verifying these numbers definitively is difficult amidst the fog of war, but the trend paints a concerning picture for Russia.