The context of Russia annexing Crimea? Or something else?
Commencing a new cold war on those regards...
The US is not in danger in any means by Russia in terms of direct contact. What happened in Crimea happened, and whether the vote was rigged or not to join back, the end result was not hampered by even the EU, who should've taken care of the situation. Not the US.
You could say it was not in our interests to even associate with the matter, and it shouldn't have been, and as a result we find ourselves with our feet not in our mouths, compared to Bush in the middle east (which you say he was and winding down now is good, so whether you are for mass invasion or not puzzles me).
The Arabian revolution happened out of his control, what could he have done support the dictator? As far as i can tell Russia taking over Crimea was also out of his control.
To a degree it was out of his control, or any control from foreign counterparts, yet it was aimed in a direction not to repeat history, IE, Saddam's takeover of Iraq. Had leaders that no longer walk this Earth give their final commands, we could had of seen similar instances. With the US not sending mass quantities of soldiers over but using drones and offshore tactics, it eventually led to a more stable region.
The Arab spring was something I actually was happy about, where the citizens of their country wanted change and weren't afraid to stand in the face of government and risk their lives. Look now to Syria, and although ISIS is willing to pull the triggers w/o commands, you now have this flocking to Germany or other "promised lands" to evade the country and its terrorism associated with it.
In my mind, a coalition effort here would more than likely be a repeating failure as seen elsewhere in the middle east. You have a religious hot-bed that for the past 2000 years have been in religious wars and Jihads aiming to destroy one-another. Sending a mere 1.5 million soldiers will not make up for 210 decades of previous history, to fix (in what I find) a flawed religion that spans more than 1/7 of the world. The very basis of Islam promotes Jihads, or holy wars to eliminate what could be called 'gentiles' of Islam, and now you have these groups taking that name to the point, while other followers claim "that is not was Islam stands for." Well, apparently these people don't understand what the spoon the feeds them actually believes in.
In my mind, the entire region should be blockaded at every feasible crossing and waterway from the outside world, as their ideology ceases to grasp the true meaning of co-existence.... It's quite obvious when leaders are saying closer countries in the path to Germany are just as safe, when they are actually saying we have too many of your people and thoughts here and you are no longer accepted by us..
And if that doesn't work just send them to the Outback of Australia, as apparently they don't mind taking on too many foreigners...