The Government secured Dáil approval for its plans to scrap the measure, winning the vote by 79 to 71.
The abolishment of the triple lock on the deployment of Irish Defence Force personel will "renew peacekeeping" according to a Midlands TD.
Fine Gael's Micheal Carrigy voted in favour of removing the need for UN approval before Irish troops can be deployed on certain overseas missions.
The Government won a Dáil vote on plans to scrap the measure, by 79 votes to 71.
The Longford Westmeath TD says like many in the country, he has family serving overseas:
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