Against the backdrop of the explosions in Crimea, which are probably behind Ukrainian forces, Russia decided to withdraw ten of its fighter jets from occupied Crimea.

 This is stated in a secret NATO report, which was at the disposal of Business Insider.

 According to a NATO report dated August 22, "Russia is likely to withdraw its air force from Crimea to prevent further attacks from Ukraine."

 The Russian military is said to have already redeployed ten of its fighter jets from Crimea back to Russian territory to avoid further aircraft losses. These are six SU-35S fighters and four MiG-31BM interceptors.

 Despite these maneuvers, the Crimean Belbek airfield near Sevastopol remains "Russia's most important airfield for providing air support in southern Ukraine and the Black Sea," NATO intelligence officials write.

 According to the Alliance, about 32 Russian fighter jets are still stationed in Belbek. These are mainly SU-27 fighters, but there are also a small number of modern SU-35S and MiG-31BM.

 In addition, Russia has increased the number of its tactical surface-to-air missiles in Crimea to counter further attacks from Ukraine, such as drones.

 "Ukrainian UAVs are difficult for Russian air defense systems to detect as targets. This problem is common among all the forces that Russia deploys in Ukraine," the secret document says.

 We will remind you that in recent weeks there have been explosions at Russian military bases. Among other things, an attack was carried out on the Saksk base of the Russian Air Force.

 British intelligence previously said Russia had lost at least eight warplanes in the explosions at the Saki military airfield, although the airfield itself remained usable.