There are currently more than 400 Russian planes and about 360 combat helicopters near the borders of Ukraine.
Source: Yurii Ihnat, spokesman for the Air Force Command of the Armed Forces of Ukraine, at a briefing on 25 August
Quote from Ihnat: «There is a group of Russian planes near our borders, more than 400 combat aircraft. There are also 360 helicopters, more than 150 of which are attack helicopters, such as the Ka-52 [a multi-role attack helicopter that can operate in any weather condition].»