The Vatican will not join President Donald Trump’s newly formed Board of Peace, its top diplomatic official said Tuesday, signaling reluctance from the Holy See to take part in the post-war initiative.

Vatican Secretary of State Cardinal Pietro Parolin said the Holy See “will not participate in the Board of Peace because of its particular nature, which is evidently not that of other States,” the Vatican’s official news outlet reported.

The Board of Peace, which was chartered in January and includes nearly 20 countries, is tasked with managing recovery efforts in the Gaza Strip after the Israel-Hamas war.

While responding to questions about Italy declining to join the board, Parolin said “there are points that leave us somewhat perplexed,” adding that “there are some critical points that would need to find explanations.”

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“The important thing is that an attempt is being made to provide a response,” he said. “However, for us there are certain critical issues that should be resolved.”

Parolin continued, “One concern is that, at the international level it should above all be the UN that manages these crisis situations. This is one of the points on which we have insisted.”

Pope Leo, the first U.S. pope, received an invitation to join the peace board in January.

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Leaders from 17 countries participated in the initial charter signing ceremony in Davos, Switzerland, in late January, including presidents and other senior government officials from Latin America, Europe, the Middle East and Central and Southeast Asia.

Israel formally joined the board last week ahead of Prime Minister Benjamin Netanyahu’s meeting with Trump at the White House.

Several other countries were also invited by the White House, including Russia, Belarus, France, Germany, Vietnam, Finland, Ukraine, Ireland, Greece and China.

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Poland and Italy on Wednesday said they would not join.

Trump announced Sunday that board members have pledged more than $5 billion in aid for Gaza.

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The president said the funding would be formally pledged during a meeting Wednesday in Washington, D.C.

Fox News Digital’s Anders Hagstrom contributed to this report.