Commissioner-General of the United Nations Relief and Works Agency (UNRWA) Pierre Krahenbuhl stressed on Monday that the agency’s work will continue despite the United States’ decision to cut off aid. “I express deep regret and disappointment at the nature of the US decision,” he said in an open letter to Palestinian refugees and the agency’s staff. Millions of Palestinian refugees “cannot simply be wished away,” he added. UNRWA provides services to about 5 million Palestinian refugees across Jordan, Lebanon, Syria and the West Bank and Gaza. Most are descendants of some 700,000 Palestinians who were driven out of their homes or fled fighting in the 1948 war that led to Israel’s creation. The growing refugee count was cited by Washington, UNRWA’s biggest donor, in its decision last week to withhold funding, and has potential ramifications for the Palestinians’ pursuit of a right of return to land now in Israel. Krahenbuhl said “the protracted nature of the Palestine refugee crisis” was not unique. He said the children and grandchildren of long-displaced refugees in Afghanistan, Sudan, Somalia, Congo and elsewhere are also recognized as refugees and assisted by the United Nations. “No matter how often attempts are made to minimize or delegitimize the individual and collective experiences of Palestine refugees, the undeniable fact remains that they have rights under international law and represent a community of 5.4 million men, women and children who cannot simply be wished away,” he said. A day earlier, he said from Jordan: “We are not mandated to deal with the politics. It is the utter failure of the parties and the international community to resolve this conflict that explains why Palestine refugees are still refugees 70 years on.” “It has nothing to do with an UNRWA perpetuation of that situation." "The investment in young boys and girls... (and) in opportunities for their future is an investment in stability and therefore preserves the opportunities for peace," Kraehenbuehl told The Associated Press separately in an interview Sunday. "It is clear to me this decision has been made for political reasons and not in relation to UNRWAs performance or the results that we have achieved," he said. Israeli Prime Minister Benjamin Netanyahu described UNRWA on Sunday as “the refugee perpetuation agency” whose money “should be taken and be used to really help rehabilitate the refugees, whose real number is a sliver of that reported by UNRWA”. The United States paid out $60 million (£46.5 million) to UNRWA in January, withholding another $65 million, from a promised $365 million for the year. Krahenbuhl said Arab Gulf states had injected funds but UNRWA still needed more than $200 million. In Lebanon on Monday, UNRWA opened its school year as scheduled. Studies in UNRWA-run schools in the occupied West Bank and the Gaza Strip got under way on Wednesday. Claudio Cordone, director of UNRWA Affairs in Lebanon, told Reuters that funds would last only until the end of the month but the agency would continue to raise money to ensure the schools remain open. Washington’s move against UNRWA was the latest in a series of US and Israeli policy decisions that have angered Palestinians and raised international concern. They include Trump’s recognition of Jerusalem as Israel’s capital in December, the moving of the US Embassy to the contested city in May and Israel’s adoption of a “nation-state” law in July that says only Jews have the right of self-determination in the country.