NBC News reported the information.Senior U.S. officials, citing intelligence assessments, told the network that Putin is now more determined than ever to continue the war in Ukraine and achieve victory on the battlefield. At the same time, American intelligence has detected no indications from Moscow of a willingness to compromise.The sources also note that the Kremlin leader is believed to have adopted a more aggressive stance regarding the war against Ukraine.Russian leader Vladimir Putin announced the completion of tests for the Burevestnik nuclear missile, which is reportedly capable of covering a distance of 14,000 km.