Once Russian soldiers reach certain parts of the front lines of the war in Ukraine, they can expect to live an average of just 20 to 35 minutes, according to a grim estimate by Russian military bloggers.

Ukraine said it struck a pair of Russian oil refineries far behind the front lines on Sunday as President Vladimir Putin vowed to ramp up defenses.

Stefan Sivers, 35, of Aberdeen, is reported to have been fighting against Russian forces in the Kharkiv region.

Ukraine’s foreign minister, Andrii Sybiha, arrived in Seoul on Tuesday to meet Cho Hyun, his South Korean counterpart. They will talk about the fate of North Korean soldiers who were captured by Ukraine while fighting for Russia.

June 30 (Reuters) - Ukraine's military struck Russia's Dubna satellite communications centre in the Moscow region on Tuesday for the second time, President Volodymyr Zelenskiy said, in a widening campaign of strikes targeting such facilities.

President Volodymyr Zelenskyy says Ukraine will ramp up attacks on Russia in an operation "aimed at compelling it to end the war."

As Russia’s war in Ukraine grinds on, the Russian military has gone to significant lengths to pad its ranks, including by recruiting foreign fighters from developing countries with promises of high salaries and bonuses.

Ukraine reveals new figures for North Korean troop losses in Russia's Kursk Oblast * Ukraine claims strikes on bridges, Russian command posts and logistics * 154th