And a frustrated former police advisor sits in Springfield, worried about all the time and manpower America has invested in the conflict.
"Granted we all wanted to get back to our families you know, but the reality is that it's hard to walk away from something that you know is not finished," Former Advisor to Iraqi Police Mitchell Moffitt said.
Moffitt worked for the state department training Iraqi police for five years.
"Worked out of the Baghdad Police College training and advising and working with the two star generals up there," he said.
He said the instability returning to the country does not come as a surprise.
"I was there when we were pulling out and changing over and those of us that were there just shook our heads and said we're not finished," he said.
He believes this week's events are just the beginning of another wave of violence in Iraq.
"If this blows up the way it looks like it's going to, it's not just two sides. The Kurds are going to get involved, then the Turks are going to get involved, then Iran is going to get involved," he said.
Moffitt believes the United States has two options at this juncture.
"Either let's just call Iraq what it's going to be and that's Iran West or get back over there and finish the job we started," he said.
Copyright 2016 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.