Ukraine's 40-day campaign to take the war to the heart of Russia increases the strain on Russian businesses, people and air defences, analysts say.

More than four years after the start of Russia's full-scale invasion of Ukraine, diplomacy is at a standstill and the two countries are ramping up long-range strikes, causing a…

Ukraine struck two Russian oil refineries hundreds of kilometres from the border in an overnight attack, President Volodymyr Zelensky said on Thursday, as Russia hit a train…