"Legally speaking your argument has no merit." It is irrelevant for the period 1793- 1990 - it was part of Russia, everyone agreed it was part of Russia and some gerrymandering by Mr K it was just smoke and mirrors
However AFTER 1990 it's a different story - whatever Racedo thinks it was clearly an invasion of a sovereign country - I can here him howl if Poland walked into Kalingrad for example.
Beamrs link re the Kola was interesting - it looks as if upgrading bases for the new SLBM's is a priority whereas the glacial progress on upgrading Severomorsk 1 suggests that aviation upgrades are not as seen critical