Legislation to remove the Triple Lock is expected to be enacted by the end of the year.
Minister for Defence Helen McEntee is expected to bring the Defence (Amendment) Bill 2026 to the Cabinet for approval in the coming weeks.
The bill removes the requirement for UN approval when deploying members of the Defence Forces outside the State.
Last week, Ms McEntee told her Cabinet colleagues how the importance of the legislation was underscored by Ireland's recent withdrawal from Operation IRINI - a European anti-arms smuggling naval mission in the Mediterranean - because the UN Security Council's mandate for the mission had lapsed.
Ms McEntee said not only was this detrimental to the IRINI mission, but it prevented the Defence Forces from benefiting the experience and knowledge sharing of the mission.
The Government's move to remove the Triple Lock comes despite Opposition claims the decision will undermine Ireland's neutrality.
In March, around 400 academic staff and other university workers signed a letter to Taoiseach Michael Martin expressing alarm at Cabinet's decision to remove the Triple Lock.
President Catherine Connolly has previously stated the Triple Lock is "at the core" of Irish neutrality and that there should be a referendum on the issue.
When asked during the Presidential Election how she would deal with the matter if it came before her as President, Ms Connolly said: "My role as president would be to look at every piece of legislation that comes before me for one specific purpose to see is it in compliance with the constitution."
"I would look at that and take the expert advice from the Council of State and make up my mind about that and the only option open to me would be to refer the matter to the Supreme Court for their decision," she said during an RTÉ candidate debate.
A Government source stressed Ireland would remain neutral even without the Triple Lock.
The source said: "We as a country are military unaligned. We will remain so. But we cannot limit our ability to advance the cause of peace and peacekeeping by leaving in place the Triple Lock that provides for an effective veto for other countries to determine where our peacekeepers are deployed.
"The decision to deploy our troops should should rest with the elected representatives of the Irish people.
"Any peacekeeping mission should of course be in line with the principles of the UN Charter."
The proposed legislation states that a contingent of the Defence Forces can be dispatched outside the State where there is Government approval along with a resolution passed by the Dáil.
However, a subsequent Dáil resolution is not required when deploying a replacement contingent.
A Dáil resolution will also not be necessary when the Defence Forces contingent deploying abroad has 50 members or less.
