Back in Iraq?

I thought we withdrew from Iraq, but the United States is now sending 1,500 troops back.

I understand these are noncombatant troops, but this could very easily be a smaller step toward larger action. Vietnam started with advisors.

Is sending more military the right choice for the situation?

And what exactly does a promise of "no boots on the ground" mean? Does that mean no troops? No combat troops? Should that president break that commitment?

http://m.bbc.com/news/world-us-canada-29961084