NATO, of course, takes the stance that they are a defensive alliance which is once again coming together against a nation which, "has once again decided it will use force to change internationally-recognized borders". Many analysts are hearkening the war in Syria to a 'proxy war' between the USA and Russia, much as it was during the Cold War.
In my opinion, there is no real way to determine whether or not this is an actual cold war, with the information currently available. The situation involves many different factors and groups, and is simply too complex to fully comprehend without extensive research and study.
Below is the interview with Prime Minister Medvedev, if anyone would like to watch.