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The vote came after a debate in the Commons that was divided along party lines and which also provided a taste of the political rhetoric that Canadians will hear in the upcoming election campaign.

The governing Tories called on all MPs to back the new mission to provide “moral clarity” to Canada’s plan to “degrade” ISIL until it no longer poses a threat to Canada and the world.

But opposition leaders have been highly critical, arguing that the government has neither made the case for an expanded mission nor identified an “exit strategy,” and that there are better ways — such as humanitarian assistance — for Canada to help out in the region.

MPs from the NDP, Liberals and Green party opposed the motion and cast their votes against it Monday evening.

But the Tories, who have had a majority in the House since the 2011 election, had the power to pass the motion.

Former Liberal MP Scott Andrews, now sitting as an Independent following his expulsion from caucus over allegations of sexual harassment, broke ranks with his former party and voted with the Conservatives in favour.

Harper, who announced the mission in a speech to the Commons last week, released a written statement after the vote in which he reiterated his government’s plan.

“We cannot stand on the sidelines while ISIL continues to promote terrorism in Canada as well as against our allies and partners, nor can we allow ISIL to have a safe haven in Syria.”

Senior cabinet ministers such as Defence Minister Jason Kenney, Justice Minister Peter MacKay and Treasury Board President Tony Clement spoke in the final hours of debate in favour of the mission.