Ukraine marked 1,000 days on Tuesday since Russia's full-scale invasion, with weary troops battling on numerous fronts, and Kyiv besieged by frequent drone and missile strikes. In a boost for the country, US President Joe Biden gave the green light for US missiles to strike deeper inside Russia – a shift in policy that may be reversed when Donald Trump returns to the White House in January. Follow our liveblog for all the latest developments on Russia's war in Ukraine.