A Russian outpost in the Baltics, Kaliningrad, has emerged as a new frontier of tensions between Moscow and the European Union over Ukraine.
Russia has threatened Lithuania with serious consequences after it halted rail transit of several sanctioned goods to the Russian exclave.
Al Jazeera's Dominic Kane reports from Berlin.

Subscribe to our channel http://bit.ly/AJSubscribe
Follow us on Twitter https://twitter.com/AJEnglish
Find us on Facebook https://www.facebook.com/aljazeera
Check our website: http://www.aljazeera.com/
@AljazeeraEnglish
#Aljazeeraenglish
#News