US President Joe Biden and UK Prime Minister Keir Starmer are not expected to announce any changes in policy regarding Ukraine's use of long-range missiles inside Russia, despite Ukraine's push for such permissions. Russia has warned that allowing these strikes would mean direct NATO involvement in the conflict, with President Vladimir Putin and UN Ambassador Vassily Nebenzia both stating it would be considered an act of war. Starmer rebuffed Putin's threats, emphasizing that Russia started the conflict and that Ukraine has a right to self-defense. The discussions between Biden and Starmer are set to address the strategic context and potential implications of lifting restrictions on long-range missile use by Ukraine. The summit is part of broader efforts to outline a long-term victory plan for Ukraine.