Guyana's vice-president, Bharrat Jagdeo, has issued a strong warning that his country will defend itself ‘by all and any means’ amid growing concerns that Venezuela's president Nicolás Maduro may attempt to annex a…

A long-simmering conflict in eastern Ukraine is escalating into a flashpoint for superpower rivalry, as a Russian military build-up is met by the deployment of two American warships to the Black Sea. Putin…