Pyongyang must keep improving its military capabilities to check “reckless expansion” of West, leader Kim Jong-un has said North Korea is planning to boost its stockpile of nuclear weapons to counter threats posed by the US and its allies, the country’s leader Kim Jong-un has said. In a speech on Tuesday marking the 76th anniversary of North Korea’s founding, Kim stressed that Pyongyang must continue enhancing its defense capabilities, citing the “reckless expansion of the military bloc system