() President Donald Trump said Tuesday that he believed Ukraine could win back all territory lost to Russia, a shift from his repeated calls for Kyiv to make concessions to end the war.

“I think Ukraine, with the support of the European Union, is in a position to fight and WIN all of Ukraine back in its original form,” Trump wrote on social media. “With time, patience, and the financial support of Europe and, in particular, NATO, the original Borders from where this War started, is very much an option.”

Trump, going back to his 2024 campaign, insisted he would quickly end the war, but his peace efforts appear to have stalled following a diplomatic blitz last month, when he held a summit with Russian President Vladimir Putin and a White House meeting with Ukrainian President Volodymyr Zelenskyy and European allies.

Trump has acknowledged, including in his United Nations General Assembly speech to world leaders, that he thought a resolution to this conflict would be “the easiest” because he has had a good relationship with Putin. Trump said he is open to imposing more sanctions on Russia and urged Europe to join in.

“Russia has been fighting aimlessly for three and a half years a War that should have taken a Real Military Power less than a week to win,” Trump wrote on social media. “This is not distinguishing Russia. In fact, it is very much making them look like ‘a paper tiger.’”

In his speech to the General Assembly, Trump said the war in Ukraine was making Russia “look bad” because it was “supposed to be a quick little skirmish.”

“It shows you what leadership is, what bad leadership can do to a country,” he said. “The only question now is how many lives will be needlessly lost on both sides.”

The Associated Press contributed to this report.