<h1>Ukrainian and US presidents seek increased US support, tariffs, and security guarantees amid alleged atrocities and stalled peace talks</h1> Ukrainian and US presidents met at the UN to discuss additional US support and security guarantees as Ukraine seeks to repel sustained Russian attacks; the US president urged tougher economic measures, including tariffs and pressure on European energy purchases, while European leaders signaled further sanctions. Peace talks arranged earlier remain stalled with Russia not engaging. The UN and human-rights office report increased civilian casualties and credible allegations of widespread torture and sexual violence by occupying authorities, implicating potential international-criminal and human-rights obligations. NATO allies will consult after alleged airspace incursions, raising collective-defense and rules-of-engagement legal considerations.