Russia may have moved strategic air defense systems from the Kaliningrad enclave to compensate for recent losses on the Ukrainian front, Britain’s Ministry of Defense said in an assessment on Sunday, The Kyiv Independent reported.

Anti-aircraft complex “Tor-M1” of the Russian Central Military District in UkrainePhoto: Yevhen Biyatov / Sputnik / Profimedia

British military intelligence claims there have been “exceptional movements of Russian air transport” in the area.

The Kaliningrad enclave, located on the coast of the Baltic Sea, borders NATO member states: Poland to the south and Lithuania to the north and east.

The fact that the Russian Ministry of Defense appears willing to accept additional risk in the area highlights “the strain that the war has placed on some of Russia’s key modern capabilities,” the British Ministry of Defense said.

The unexpected measure was taken after Russia increased losses of air defense systems in October.

In early November, the British Ministry of Defense said that Ukrainian strikes had probably destroyed at least four Russian anti-aircraft missile systems located in the occupied territories in a week.

The losses show Russia’s struggle with modern precision strike weapons and will increase pressure on other systems.