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-24 forces, split 321 with the Russian Air Force and 94 with the Russian Navy. The Russian Air Force will eventually replace the Su-24 with the Sukhoi Su-34. The Soviet Union used some Su-24s in the Soviet–Afghan War, with an initial round of strikes in 1984 and a second intervention at the end of the war in 1988. No Su-24 were lost. On October 13, 1990, Syrian Air Force jets entered Lebanese air space in order to strike General Michel Aoun's military forces. Seven Su-24 jets were used in this operation. During Operation Desert Storm, the Iraqi Air Force evacuated 24