I think the bigger issue is why was a sniper shooting at ISIS while in Iraq in the first place. Harper got us knee-deep into the Iraq War to risk blood & treasure to fix problems created by other stupid countries, Trudeau seems fine continuing this.
Trying to fix stuff, I presume. I think it was Colin Powell who said 'You break it, you own it" in reference to Iraq. If you presume the state of Iraq today has something to do with western intervention then some might suggest we should help fix things.