An RFE/RL investigation reveals details about the role of Cuban mercenaries fighting in Russia's war against Ukraine, with ...

Ukrainian President Volodymyr Zelenskyy refused to sign an agreement to grant the United States 50 percent of all future reserves of rare earth metals in Ukraine, according to news reports following a ...

A Russian drone armed with a "high-explosive warhead" has damaged a radiation shelter at Chernobyl's nuclear power plant, ...