Sukhoi No. 135 in Kharkiv, Ukraine. However, Sukhoi was not satisfied with its location, since it was isolated from the scientific pole of Moscow. Sukhoi later relocated the bureau to the aerodrome of Podmoskovye in Moscow, completing half of the relocation by 1940. Sukhoi encountered another issue: the bureau had no production line in Moscow, thus making it useless as Sukhoi had nothing to do. During the German invasion of the Soviet Union in World War II, the Su-2 needed a successor as it was proved obsolete and under-armed against German aircraft, with 222 aircraft destroyed in total. Sukhoi and his
Sukhoi Su-30MKI demonstrator and Su-30 program, being more advanced than the Su-30MK and the Chinese Su-30MKK/MK2. Russia's Defence Ministry was impressed with the type's performance envelope and ordered 30 Su-30SMs, a localised Su-30MKI, for the Russian Air Force. It features state of the art avionics developed by Russia, India and Israel for display, navigation, targeting and electronic warfare; France and South Africa provided other avionics. After two years of evaluation and negotiations, on 30 November 1996, India signed a US$1.462 billion deal with Sukhoi for 50 Russian-produced Su-30MKIs in five batches. The first batch were eight Su-30MKs, the basic version of Su-30.