US President Donald Trump | After a very public clash with US President Donald Trump at the White House, Ukraine's Volodymyr Zelensky received a royal welcome in Britain, as the United Kingdom and the European Union demonstrate their "unwavering" support to him. The Ukrainian president is in London to attend a summit hosted by UK Prime Minister Keir Starmer, where he's also set to hold an official audience with at Sandringham. The Friday's extraordinary scenes in the Oval Office will now likely dominate the agenda of Zelensky's London visit, and refocus the conversation on how Europe and Ukraine can get the US back on side as a security guarantor for any peace deal with Russia.