michael shure has details. >> it's being called the worst security crisis between russia and the west since the cold war. >> the threat of russian military action in ukraine, lingering russian president vladimir putin now increasing military exercises in the region even in the face of severe economic sanctions. most sanctions on russia could be. >> fairly fatal. >> it's a very small economy, even though he's a powerful military force. and they kind of really compete economically with. but with the united states the european union, all of this stemming from kremlin concerns over nato expansion, putin putting a show of force behind demands that the alliance not expand into ukraine or other former soviet countries. university of alberta, professor of russian and eastern european history. david marple saying the russian german alliance could be a way out of the crisis with too much for putin to risk over the nearly completed nord stream pipeline, which would actually. >> separate the russian german economy is from that of the rest of the european union, which is what putin is wanted for a
