Interesting. For most of the last sixty-five years, Germany wouldn't have dared put troops anywhere near Kaliningrad - both due to internal political concerns and international ones.Germany to station 4,000 troops in Lithuania – DW – 06/26/2023
Vilnius has repeatedly called on Berlin to deploy permanent combat troops to the country, which borders the Russian enclave of Kaliningrad.www.dw.com
Most people today, at least in the West outside of Germany, have no idea that the area was Germanic for hundreds of years. The area became known as East Prussia after German unification in the late 19th century. Its capital was Konigsberg - now along with the region, Kaliningrad. It became a flash point leading up to the second WW when a corridor and the city of Danzig were given to Poland following Germany's defeat in 1918. East Prussia was thus an enclave, but very much a part of Germany. The elimination of the Polish corridor and reincorporation of Danzig (Gdansk) played a major role in Hitler's decision to invade in 1939.
The area was seized by the Red Army late in WWII, and was held and then incorporated into the Soviet State following the war. Renamed Kaliningrad, it would provide the USSR a convenient naval base on NATO's northern flank.
Putin has indeed changed the world dramatically in very short time. Finland, scrupulously neutral since WWII, has now joined NATO and Sweden is on the verge of doing so. Putin and the Russian Federation would have threatened war had Germany attempted to permanently station troops along the Kaliningrad border just 18 months ago. Indeed, due to domestic concerns, Germany would not have contemplated it.
As Wagner demonstrated, Russia doesn't even have the means to respond conventionally by increasing troops along the borders of the Baltic States.
I think we are just beginning to see the eventual fallout from the Special Military Operation.