Biden authorises Ukraine to use US-supplied missiles for strikes in Russia

US President Joe Biden has authorised Ukraine to use American-supplied long-range missiles to strike deeper inside Russia, easing limitations on the weapons as Russia deploys thousands of North Korean troops to reinforce its war, according to a US official and three people familiar with the matter.The decision allowing Kyiv to use the Army Tactical Missile System, or ATACMs, for attacks farther inside Russia comes as President Vladimir Putin positions North Korean troops along Ukraine's northern border to try to reclaim hundreds of miles of territory seized by Ukrainian forces.Biden's move also follows the presidential election victory of Donald Trump, who has said he would bring about a swift end to the war and raised uncertainty about whether his administration would continue the US' vital military support for Ukraine.The longer-range missiles are likely to be used in response to North Korea's decision to support Putin's invasion of Ukraine, according to one of the people. The