North Korea has stepped up its verbal attacks on Japan, issuing more than a dozen denunciations through state media since early July and hardening its rhetoric in recent days by accusing Tokyo of whipping up a “neo-militarist frenzy” and preparing for a “war of aggression”. Analysts said the latest broadsides from Kim Jong-un’s regime reflected both renewed confidence in Pyongyang as ties with Moscow deepen, and a desire to frame Asia-Pacific geopolitics as a contest between rival blocs –...