The new Institute for Peace Support and Leadership Training at the Curragh Camp will accept trainees from "non-neutral" countries.
The existing UN Training School there is being developed further.
It is one of the stated goals in the White Paper on Defence, published today.
The institute may be ready for showcasing next year.
Minister for Defence, Simon Coveney, says there won't be an issue with training "non-neutral" countries at the Curragh