<h1>US Deadline Nears for Russia to End Hostilities Amid Threats of New Sanctions on Oil Purchases</h1> A deadline set by the US President for Russia to cease hostilities in the ongoing conflict with Ukraine is approaching, with a US envoy scheduled to meet Russian officials in Moscow. The US threatens additional economic sanctions, including secondary tariffs targeting countries purchasing Russian oil, though skepticism remains about their effectiveness. Russia denies significant impact from current sanctions and continues military operations, including deploying new hypersonic missiles. Ukraine urges stronger sanctions, citing ongoing civilian casualties exceeding 12,000 and territorial losses. Diplomatic efforts face challenges as Russia insists on terms favorable to itself and maintains military aggression. The situation escalates tensions, with US military repositioning in response to provocative statements from Russian officials, while the conflict persists with significant human and strategic costs.