The strike to Shanghai: on 2nd December 1937, Soviets bombers destroyed Japanese cruiser and damaged 6 another military ships.
The defence of Wuhan: on 29th April 1938, Soviet fighters shot down 21 Japanese planes, and on 31st May - 15 planes.
The strike to Formosa:
the very risky, but very succefull mission of Soviet Volunteer Group. Captain Fyodor Polynin was the commander of bomber group. Formosa made a formidable target. The distance from Hankou (a suburb of Wuhan nowadays) to Formosa is more than 1000kms, so the target was barely within the range of a twin-engined SB-2 bomber. The Japanese airfield was ringed by mountains and hard to approach. It would probably be defended by fighters and would surely be protected by flaks. On 23rd February 1938, 28 SB bombers flew at 13500-16500 feet to extend the range of the SB. The crews suffered from anoxia in the course of the long flight, since there were no oxygen masks available, but there was no alternative. The bombers passed the island to the north, turn south, and came down to 12000 feet with engines muffled to delude the Japanese. The bomber group then hit the target and ran for the coast. On the way across the strait, the bombers were at 6000 feet, and the crews were able to catch their breath a little before climbing to 12000 feet. There were no escort figthers, but the SB was a speedy plane; contemporary Japanese fighters were not able to catch it. But over the target even was no any air danger; moreover the Japanese had made no attempt at camouflage or dispersal. They seemed sure of their safety. Japanese AA artillery began to fire near the end, but too late. Much lighter SB bombers had already turned and headed for the Taiwan Strait, running flat out for the Chinese coast. In all, the Soviet planes dropped 2080 bombs. The raid was a shock for the Japanese. The air base at Taibei was out of action for a month. According to Chinese intelligence, about 40 planes were completely destroyed on the airfield, and a number of unassembled planes were also destroyed in their shipping containers. The hangars and a three-year store of fuel had burned. The Japanese government recalled the governor of Formosa, and the base commander was court-martialed and subsequently committed a suicide.
Mikado's birthday: 29th April 1939 Japanese sent 72 bombers to Khankow. There weren't any escort fighters and the Soviet pilots shot down 21 bombers.
3rd October 1939 capt. Kulishenko G.A. lead the strike to Hankow airbase. The Japanes lost 64 planes; 130 men were killed and 300 wounded.