A village that sent hundreds of men to one of imperial Japan’s most notorious wartime units is being demolished to make way for a runway at Tokyo’s Narita International Airport. Unit 731 carried out lethal experiments on captives, many of them Chinese, to develop biological weapons during the second world war. Around 300 of its roughly 3,000 personnel came from Kamo, a neighbourhood in Shibayama town, Chiba prefecture, east of the capital. Its founder and commander, Lieutenant General Shiro...

Japan is bracing for a more unpredictable ally in Washington, as the US midterm elections threaten to deepen political gridlock and complicate Tokyo’s long-term security calculations, analysts say. Observers warn that post-election political battles, ranging from a possible repeat of impeachment proceedings to the mounting legal battles ensnaring the administration of US President Donald Trump, risk diverting the White House’s attention from foreign policy and its long-standing commitments to...