The bunker, so crucial during the final years of the Cold War in the Baltic, was only declassified in 2003.
Although it took 21 years after Peter ran away at the battle of Narva, Russia finally got a Baltic coastline.
And just imagine for a moment that Poland and the Baltic states were not part of NATO today.
1580s, from Medieval Latin Balticus, perhaps from Lithuanian baltas "white" or Scandinavian balta "straight" (in reference to its narrow entranceway). In German, it is Ostsee, literally "east sea."