President Joe Biden is in discussions with British Prime Minister Keir Starmer about potentially permitting Ukraine to use Western long-range missiles against targets deep within Russia, amid ongoing tensions following threats from Russian President Vladimir Putin. Ukraine has been advocating for the use of British Storm Shadow and U.S.-made Army Tactical Missile Systems (ATACMS) to strike critical Russian military infrastructure, arguing that this could significantly alter the dynamics of the war. However, U.S. officials have expressed caution, fearing that such a move could escalate the conflict and lead to direct NATO involvement, as Putin warned that allowing these strikes would mean war between NATO and Russia. While some U.S. lawmakers support lifting these restrictions to aid Ukraine, no immediate policy changes are expected following the Biden-Starmer meeting. The discussions come at a time of heightened concern over the military support being provided to Russia by other nations, such as Iran. Biden has indicated that while deliberations are ongoing, there may still be limitations on the use of U.S.-supplied arms.