ORAC - a fair assessment. The US public would not support any military intervention in Europe (with the possible exception of air strikes), and rightly so IMO.
Also, the Russian threat is way overblown. Everybody harks on about Crimea whilst forgetting the fact the Russia 'lost' the rump of Ukraine, something which still clearly irks Putin. Its laboured efforts in Syria and Libya, and abandonment of esrtwhile allies such as Armenia says all you need to know.
Personally I think Russia ought to join the EU (Putin's regime is no worse than Orban's), to secure their economic future and provide a buttress against Chinese expansionism (and for LOLz, of course...)