Sukhoi bomber in 1937. The BB-1 was approved and under a July 29, 1939 government resolution, the Sukhoi OKB, designated as OKB-51, also known as the Sukhoi Design Bureau, was developed in order to set up production for the aircraft. The BB-1 was introduced and later adopted by the Soviet Air Forces in the same year. A year later, the BB-1 was later designated the Sukhoi Su-2. A total of 910 Su-2 aircraft were developed. The resolution also made Sukhoi chief designer, gave Sukhoi's team of the design bureau standalone status and relocation of the bureau to the Production Aircraft Plant
Sukhoi Su-27 by the Japan Ministry of Defense. Russia denied the incursion, saying the jets were making routine flights near the disputed Kuril Islands. In another encounter, on 23 April 2014 an Su-27 nearly collided with a United States Air Force Boeing RC-135U over the Sea of Okhotsk. Russia plans to replace the Su-27 and the Mikoyan MiG-29 eventually with the Sukhoi Su-57 stealth fifth-generation multi-role twin-engine fighter. A squadron of Su-27SM3s was deployed to Syria in November 2015 as part of the Russian military intervention in the Syrian Civil War. Ethiopian Su-27s reportedly shot down two Eritrean MiG-29s and damaged another