The American people voted to withdraw, Obama ran on it, it was the centerpiece of his campaign, he had a mandate to withdraw, it was going to happen, he gave the Pentagon two years to do it, he actually wanted to keep 10,000 troops in Iraq, but the Shia in Baghdad said no, so he had to get them all out of there.Hanarchy Montanarchy wrote:I am also not certain ISIS (as such) was inevitable.
They only started gaining traction and securing a global following after taking over government controlled cities. Without those wins, ISIS doesn't get momentum.
It could very well be that ISIS doesn't happen without the withdraw coinciding with neighboring civil conflicts.
Just as the last of them were getting out, that is when the war in Syria started, there was never a point, when there was a large US force in Iraq, standing in the way of ISIS, even if you had decided to stand in the path of ISIS, you would have been doing it with a handful of troops, and they would have been driven out of the Anbar along with the Iraqis.