The top U.S. and Israeli generals held talks at the Pentagon on Friday amid soaring tensions with Iran, two U.S. officials told Reuters on Sunday, speaking on condition of anonymity, Reuters reported.

The officials did not offer details about the closed-door discussions between U.S. General Dan Caine, the chairman of the Joint Chiefs of Staff, and Eyal Zamir, the Israeli armed forces chief of staff. The meeting has not been previously reported.

The United States has ramped up its naval presence and hiked its air defences in the Middle East after President Donald Trump repeatedly threatened Iran, trying to pressure it to the negotiating table. Iran’s leadership warned on Sunday of a regional conflict if the U.S. were to attack it, read the report.

Israeli Defence Minister Israel Katz on Sunday met with Zamir after his talks in Washington, Katz’s office said, to review the situation in the region and the Israeli military’s “operational readiness for any possible scenario.”

At least 31 Palestinians, including six children, were killed in Israeli attacks on Gaza City and Khan Younis since early Saturday, according to medical sources cited by Al Jazeera.

The strikes came a day before Israel is scheduled to reopen the Rafah crossing between Gaza and Egypt on Sunday, marking the first reopening of the border crossing since May 2024.

Gaza’s Government Media Office said that more than 500 Palestinians have been killed by Israeli forces since a United States-brokered ceasefire came into effect on October 10.

According to local health authorities, Israel’s military campaign in Gaza has killed at least 71,769 Palestinians and wounded 171,483 others since it began in October 2023. In Israel, at least 1,139 people were killed during the Hamas-led attacks on October 7, 2023, with approximately 250 people taken captive.

The U.N. chief has told member states the organisation is at risk of “imminent financial collapse,” citing unpaid fees and a budget rule that forces the global body to return unspent money, a letter seen by Reuters on Friday showed.

U.N. Secretary-General Antonio Guterres has repeatedly spoken about the organisation’s worsening liquidity crisis but this is his starkest warning yet, and it comes as its main contributor the U.S. is retreating from multilateralism on numerous fronts.

“The crisis is deepening, threatening programme delivery and risking financial collapse. And the situation will deteriorate further in the near future,” Guterres wrote in a letter to ambassadors dated January 28.

The U.S. has slashed voluntary funding to U.N. agencies and refused to make mandatory payments to its regular and peacekeeping budgets.

U.S. President Donald Trump has described the U.N. as having “great potential” but said it is not fulfilling that, and he has launched a Board of Peace which some fear could undermine the older international body.

Founded in 1945, the U.N. has 193 member states and works to maintain international peace and security, promote human rights, foster social and economic development, and coordinate humanitarian aid.

In his letter, Guterres said “decisions not to honour assessed contributions that finance a significant share of the approved regular budget have now been formally announced.”

He did not say which state or states he was referring to, and a U.N. spokesperson was not immediately available for comment.

Under U.N. rules, contributions depend on the size of the economy of each member state. The U.S. accounts for 22% of the core budget followed by China with 20%.

But by the end of 2025 there was a record $1.57 billion in outstanding dues, Guterres said, without naming the nations that owed them.

“Either all Member States honour their obligations to pay in full and on time – or Member States must fundamentally overhaul our financial rules to prevent an imminent financial collapse,” he said.

U.N. officials say the U.S. currently owes $2.19 billion to the regular U.N. budget, another $1.88 billion for active peace-keeping missions and $528 million for past peace-keeping missions.

The U.S. State Department did not immediately respond to a request for comment on the Guterres letter.

Guterres launched a reform task force last year, known as UN80, which seeks to cut costs and improve efficiency. To that end, states agreed to cut the 2026 budget by around 7% to $3.45 billion.

Still, Guterres warned in the letter that the organisation could run out of cash by July.

One of the problems is a rule now seen as antiquated whereby the global body has to credit back hundreds of millions of dollars in unspent dues to states each year.

“In other words, we are trapped in a Kafkaesque cycle expected to give back cash that does not exist,” said Guterres, referring to author Franz Kafka who wrote about oppressive bureaucratic processes.