BUDAPEST, Hungary — Hungary will send up to 150 troops to help guard a military training center in the northern Iraqi city of Irbil as part of international efforts against Islamic State extremists.

The proposal approved Tuesday 137-57 by lawmakers authorizes the contingent's mission until December 2017.

Defense Minister Csaba Hende said Hungary had been asked by the United States to join the initiative to train local troops, which Hungary supported because the actions of the Islamic State group "are an increasing threat to international peace and security."

The success of the proposal, which needed the backing of two-thirds of lawmakers, was ensured after several opposition deputies, including former Socialist Prime Minister Ferenc Gyurcsany, voted together with Prime Minister Viktor Orban's Fidesz party, which lost its two-thirds majority in a February special election.