I thought Obama was aware that this strategy is always a very long shot (especially in the Middle East) and it’s why he didn’t want to arm moderates in Syria before? I guess the “success” of Libya has made him forget most of America’s history with regime change? He certainly knows ISIS is driving around in US tanks that we provided to the Iraqi Army assumed to share our strategic interests.
If we want to get rid of ISIS and Bashar al-Assad, it will take US boots on the ground, air, and sea. And even then, if we do topple those regimes, we don’t know how to do nation-building at all as proven by our efforts at just that in Iraq and Afghanistan. We can’t afford nor do we have the desire to occupy Syria & Iraq at the commitment levels it will take to bring the kind of change that we desire to those countries.
I don’t know the answer myself, but I’m pretty a sure that using a proxy army to further US interests doesn’t work.