Sukhoi Su-34 group airstrikes against targets belonging to ISIS and Jabhat al-Nusra terrorist groups in the provinces of Aleppo, Deir ez-Zor and Idlib. On August 17, 2016, Russian Su-34 bombers carried out strikes from the Hamadan airfield on the territory of the Islamic Republic of Iran against targets of the ISIS terrorist group in the province of Deir ez-Zor. Aircraft carried high-explosive bombs OFAB-500. These aircraft were used for bombing ice dams on the rivers in Vologda oblast to prevent the floods during the spring of 2016. Sukhoi Su-34 The Sukhoi Su-34 (; NATO reporting name: Fullback) is a Russian twin-engine, twin-seat,
Sukhoi Su-57 produced, and some believe it to be an implicit announcement of the project's cancellation. The slowing of procurement could be because of the current slow growth of the Russian economy, while the future patches' procurement are for an unknown future; the Russian military could be waiting for the more powerful Saturn izdeliye 30 engine to be ready for serial production. On 22 August 2018, during the International Military-Technical Forum «ARMY-2018», the Russian Ministry of Defence and the JSC Sukhoi signed the first contract for delivery of two serial Su-57s. The contract should be finalized between 2018 and 2020. The prototype's