Irkutsk is the capital of Irkutsk Oblast, Russia. It has a history of more than 300 years. It is the largest industrial city, transportation and trade hub in Siberia, and the second largest city in East Siberia. Irkutsk is located at the southern end of Lake Baikal, the closest city to Lake Baikal, at the confluence of the Angara River and the Irkut River. Russia's largest aircraft manufacturing plant, the Irkutsk Aircraft Manufacturing Plant, is located in the city, producing Su-27, Su-30 fighters, bombers, transport aircraft, etc.