US President Donald Trump met his Ukrainian counterpart Volodymyr Zelenskyy on Sunday and said the two were “maybe very close” to a deal to end the war with Russia.But they gave few details on how the most contentious issues between the ‍warring parties would be resolved, namely territorial concessions and security guarantees for Ukraine. Here are some of the main sticking points after weeks of intense diplomacy: For the latest updates on the Russia-Ukraine war, visit our dedicated page.The territorial dispute Russia, which invaded Ukraine in February 2022, controls about 116,000 square km (44,800 square ‍miles), or about 19.2 percent, of Ukrainian territory.That is roughly 1.2 percent more than three years ago, according to pro-Ukrainian maps. Russia’s forces have advanced in 2025 at the fastest pace since 2022.Russia says Crimea, which Moscow annexed in 2014, the regions of Donetsk and Luhansk - together known as Donbas - plus Zaporizhzhia and Kherson are now legally