Washington, Feb 28 (AP) Ukrainian President Volodymyr Zelenskyy met Friday with President Donald Trump at a pivotal moment for his country, as he tries to persuade the White House to provide some form of US backing for Ukraine's security against any future Russian aggression.

Zelenskyy flashed a thumb's up but didn't speak to reporters as he arrived at the White House. He wore a more formal black top rather than his usual military green T-shirt, prompting Trump to quip, “He's all dressed up.” Zelenskyy's delegation is expected to sign a landmark economic agreement with the US aimed at financing the reconstruction of war-damaged Ukraine, a deal that would closely tie the two countries together for years to come.

The deal, which is seen as a step toward ending the three-year war, references the importance of Ukraine's security. But it leaves that to a separate agreement still being hammered out by the two leaders.

Meeting together in the Oval Office, Trump said the agreement would be signed soon in the East Room of the White House.

“We have something that is a very fair deal,” Trump said, adding, “It is a big commitment from the United States.” He said the US wants to see the killing in the war stopped, adding that US money for Ukraine should be "put to different kinds of use like rebuilding.” Zelenskyy called Russian President Vladimir Putin a terrorist and told Trump that Ukraine and the world need “no compromises with a killer.” “Even during the war there are rules,” he said.

As Ukrainian forces hold out against slow but steady advances by Russia's larger and better-equipped army, leaders in Kyiv have pushed to ensure a potential US-brokered peace plan would include guarantees for the country's future security.

Many Ukrainians fear that a hastily negotiated peace — especially one that makes too many concessions to Russian demands — would allow Moscow to rearm and consolidate its forces for a future invasion after current hostilities cease.

According to the preliminary economic agreement, seen by The Associated Press, the US and Ukraine will establish a co-owned, jointly managed investment fund to which Ukraine will contribute 50 per cent of future revenues from natural resources, including minerals, hydrocarbons and other extractable materials.

Speaking about the rare earths agreement, Trump said the US is lacking in many such minerals while Ukraine has among the best on the planet. He said US interests plan to take those reserves and use them on everything from artificial intelligence operations to military weapons.

Asked about long-term security guarantee to guard against future Russian aggression, Trump says once the agreement is signed that a return to fighting was unlikely.

Trump, a Republican, has framed the emerging agreement as a chance for Kyiv to compensate the US for wartime aid sent under his predecessor, Democratic President Joe Biden.

But Zelenskyy has remained firm that specific assurances for Ukraine's security must accompany any agreement giving US access to Ukraine's resources. On Wednesday, he said any such agreement “may be part of future security guarantees, but I want to understand the broader vision. What awaits Ukraine?” Trump, though, has remained noncommittal about any American security guarantees.

“I'm not going to make security guarantees ... very much,” Trump told reporters this week. “We're going to have Europe do that.” This is Zelenskyy's fifth White House visit, but his previous four came during the Biden administration. The Ukrainian president also was meeting with US senators during his time in Washington.

If a truce can be reached, British Prime Minister Keir Starmer and French President Emmanuel Macron have agreed to send troops for a potential peacekeeping mission to Ukraine to ensure that fighting between Ukraine and Russia doesn't flare up again.

Both leaders travelled to Washington this week before the Zelenskyy visit to discuss with Trump the potential peacekeeping mission and other concerns about the war.

White House officials are sceptical that Britain and France can assemble enough troops from across Europe, at least at this moment, to deploy a credible peacekeeping mission to Kyiv.

It will likely take a “consensual peace settlement” between Russia and Ukraine before many nations would be willing to provide such forces, according to a senior Trump administration official who briefed reporters on the condition of anonymity under ground rules set by the White House.

Zelenskyy and European officials have no illusions about US troops taking part in such a mission. But Starmer and others are trying to make the case that the plan can only work with a US backstop for European forces on the ground — through US aerial intelligence, surveillance and support, as well as rapid-response cover in case the truce is breached.

“You've created a moment of tremendous opportunity to reach a historic peace deal — a deal that I think would be celebrated in Ukraine and around the world,” Starmer told Trump.

Zelenskyy has been vague on exactly what kinds of security guarantees would be suitable for his country, and while he continues to advocate for Ukraine's eventual membership in NATO, he has also suggested a similar security arrangement would suffice.

But Trump said this week that Ukraine “could forget about” joining the Western military alliance.

Still, Zelenskyy's meeting with Trump is seen in Kyiv as a diplomatic win for Ukraine. On Wednesday, Zelenskyy said being able to meet personally with Trump before Putin does “is a good signal.” A reporter from the Russian news agency Tass was to join other reporters in the Oval office as Trump and Zelenskyy met.

Fears that Trump could broker a peace deal with Russia that is unfavourable to Ukraine have been amplified by recent precedent-busting actions by his administration.

Trump held a lengthy phone call with Putin, and US officials met with their Russian counterparts in Saudi Arabia without inviting European or Ukrainian leaders — both dramatic breaks with previous US policy to isolate Putin over his invasion.

Trump later seemed to falsely blame Ukraine for starting the war, and called Zelenskyy a “dictator” for not holding elections after the end of his regular term last year, though Ukrainian law prohibits elections while martial law is in place.

As Zelenskyy seeks to lower the temperature with the US while in Washington, American officials are saying an economic deal would itself provide a measure of security to Ukraine through the presence of US investments on its territory.

Trump has called the US accessing Ukraine's rare earths “automatic security because nobody's going to be messing around with our people when we're there.” That perspective is echoed by the text of the economic agreement, which says the US “supports Ukraine's efforts to obtain security guarantees needed to establish lasting peace.” Washington, it continues, has “a long-term financial commitment to the development of a stable and economically prosperous Ukraine.” (AP) GRS GRS