Russia said on Tuesday the suspension of U.S. aid to Ukraine following a public clash between their leaders, Donald Trump and Volodymyr Zelensky, was the best contribution to ending the Russia-Ukraine war.

"If the United States stops (military supplies), this would probably be the best contribution to peace," Kremlin spokesman Dmitry Peskov said, adding that it was a "solution which could really push the Kyiv regime to a peace process".

A former Iranian foreign minister who was key to the country's 2015 nuclear deal with world powers reportedly tendered his resignation on Monday from the government of reformist President Masoud Pezeshkian, caving in to pressure from hard-liners.

The resignation of Mohammad Javad Zarif signaled Tehran's rapid retreat from its outreach to the West as U.S. President Donald Trump intensifies sanctions on the country.

British Prime Minister Keir Starmer rallied his European counterparts Sunday to shore up their borders and throw their full weight behind Ukraine as he announced outlines of a plan to end Russia's war.

"Every nation must contribute to that in the best way that it can, bringing different capabilities and support to the table, but all taking responsibility to act, all stepping up their own share of the burden," he said.

Canadian Prime Minister Justin Trudeau will meet with King Charles III, the country's head of state, on Monday where he will discuss U.S. President Donald Trump's threats to make Canada the 51st state.

The king has come under criticism in Canada for being silent about Trump's threats to annex Canada.

The Kremlin on Monday described last week's angry exchange between Ukrainian President Volodymyr Zelensky and U.S. President Donald Trump at the Oval Office as "unprecedented".

"Quite an unprecedented event," Kremlin spokesman Dmitry Peskov said of the meeting in comments to journalists, adding that Zelensky "demonstrated a complete lack of diplomatic abilities. To put it mildly".

It was supposed to cap a week of whirlwind diplomacy advancing the prospect of peace in Ukraine.

But a summit of European leaders on Sunday has been overshadowed by the extraordinary scolding by U.S. President Donald Trump of Ukrainian President Volodymyr Zelenskyy at the White House on Friday for being ungrateful for U.S. support. The London meeting has now taken on greater importance in defending the war-torn ally and shoring up the continent's defenses.

European leaders threw their support behind Ukrainian President Volodymyr Zelensky after his spat with Donald Trump sent shockwaves across the world, casting doubts over efforts to end the Russia-Ukraine war.

The U.S. president openly berated Zelensky on Friday for not being "thankful", and later accused the Ukrainian leader of "not being ready for peace" and having "disrespected" the United States in the "cherished Oval Office".

U.S. President Donald Trump erupted at Volodymyr Zelensky on Friday, angrily sending the Ukrainian leader out of the White House after an extraordinary Oval Office meltdown because he was "not ready" for peace with Russia.

North Korea said Friday it had test-fired strategic cruise missiles to demonstrate its nuclear counter-attack capability, days after it vowed to respond to what it called escalating U.S.-led hostilities since the start of the Trump administration.

The official Korean Central News Agency said leader Kim Jong Un oversaw the missile tests off the country's west coast Wednesday. They were the North's fourth missile launch event this year and the second of President Donald Trump's second term.

Prime Minister Keir Starmer wore a broad smile aboard the plane home from Washington. He landed back in Britain on Friday with the satisfaction of a tricky mission not quite accomplished, but off to a flying start.

Starmer's goals for his trip were to persuade President Donald Trump to provide Ukraine with security guarantees in any peace deal and head off duties on British goods while pursuing a rapport with an unpredictable U.S. leader who is the center-left prime minister's opposite in temperament and political outlook.