Not a real risk.
1. The rest of the world has no chance without the United States.
2. Everyone in the world, on all sides, knows that Obama is a sissy who would never fight a real adversary.
3. Putin is not a moron and will back off once the United States has a real president.
Im not sure it works exactly that way. Chairman O has weakened our military to the point theyre nothing like they were when he took office. Hes done this by PC (climate change, homs, women in combat etc etc), humiliating our military numerous times on an international stage, running off good officers replaced by those unquaified to run a war, prosecuring wars in name only, training with enemy militaries so they can get first hand knowledge on how we operate etc. Were beatable now even with a govt who isnt playing games. That and our economy couldnt sustain a protracted war. If Barry leaves office on schedule the damage is done of many years into the future. Our enemies know this and when they think its feasible attack.
Mr. Putin instead has taken his measure of Mr. Obama and has doubled down, saving his client regime in Syria. Russia has won in Syria and NATO and the West are stuck with that outcome, as are the unlucky residents of Aleppo. "I hope Obama doesn't decide to get a backbone now," suggested a retired American general who knows the Russians well, "since the Kremlin is in 'drive' in Syria and isn't about to do 'reverse'."
“3. Putin is not a moron and will back off once the United States has a real president.”
You really think a Republican President would bother bullying Putin when our own military and economy are a mess, and our allies have mostly scrapped key components of their militaries because they think they can rely on us?