Despite Ukraine’s persistent requests for US-made ATACMS missiles to target Russian forces, Biden has remained cautious. US officials reportedly believe these long-range missiles would offer limited advantages on the battlefield while depleting Washington’s own stockpiles.

White House - President Joe Biden is meeting British Prime Minister Keir Starmer at the White House on Friday to discuss support for Ukraine and Israel

The West will not be bullied by Vladimir Putin’s threat of all-out war with Nato if Ukraine is given permission to use Western weapons to strike inside Russia, the foreign secretary has said.