Ukraine wants the US Tomahawk missiles to help it pressure Putin into genuine negotiations, and it wants US security guarantees to make sure he is forced to abide with any future peace settlement. Zelensky left the White House without either of those things.

Doubts arose over whether Ukraine would be supplied with advanced U.S. Tomahawk missiles ahead of a Zelensky-Trump meeting taking place in the White House.

Earlier, Trump met with Ukraine's president, Volodymyr Zelenskyy, as he pivots to brokering an end to the nearly four-year-old war in eastern Europe.