Before major NATO maneuvers: Putin confidant Medvedev threatens “big war”. Between Poland and Lithuania: NATO exercise to defend the Baltics: The fear is that Russia could be cut off by land routes.

According to the Bundeswehr, “the focus of the exercise is on the Suwalki Corridor” The Suwalken Gap in question extends over 104 kilometers between the small Polish exclave of Kaliningrad and Belarus. The corridor is considered NATO's Achilles heel on the Baltic Sea.