Nobody was really strongly opposed to intervention in Libya. Russia is VERY strongly opposed to even a condemnation of Bashar al-Assad, let alone a full-on military invasion.
On top of that, the majority of Libyans live in a narrow strip along the coast. Syria has a more evenly spread population, so a no-fly zone isn't really a possibility.
And finally, there's only so many times you can intervene before you just get sick and tired of spending your money and having everybody hate you.







