An artillery firing exercise is underway at a shooting range in Yeoncheon County, Gyeonggi Province, South Korea, last month. South Korea said it would be ‘regrettable’ and would hurt separated families if North Korea did not go ahead with the reunions as agreed. Photograph: Yonhap/EPA

A nuclear-capable US B-52 bomber sortie over South Korea has endangered plans for reunions between families from the North and South of the country an(...)

The tiny islands in the East China Sea, called Senkaku in Japan and Diaoyu in China. China said yesterday it had monitored two unarmed US bombers that flew over the East China Sea in defiance of its declaration it was exercising greater military control over the area. Photograph: AP/Kyodo News.

Tensions in the East China Sea escalated on Wednesday after the Chinese government said it had monitored two American B-52 bombers that flew over its (...)

Two American B52s conducted a training mission through international air space recently claimed by China as its “air defence identification zone”. Photograph: US air force via the New York Times

The US has defied Chinese claims over an area of international airspace by flying two unarmed long-range B52 bombers over a chain of islands in the Ea(...)

South Korean soldiers patrol along the military fences near the demilitarized zone separating North Korea from South Korea. Photograph: Lee Jae-Won/Reuters

North Korea has indicated that it might be prepared to negotiate as the region seeks a way to defuse tensions on the Korean pe(...)

US secretary of state John Kerry gestures before South Korea's foreign minister Yun Byung-se this morning at the presidential Blue House in Seoul. Photograph: Paul J Richards/Reuters

The US will never accept North Korea as a nuclear power and will come to the defence of the South if necessary, secretary of state John Kerry said (...)

North Korea’s leader Kim Jong-un holds up a pistol as he supervises firing drills with the  North Korea People’s Army (KPA), in this still image taken from video footage released by the North's state-run television KRT yesterday

Even some at the Pentagon appeared to feel that the US may have overdone the rhetoric and provoked North Korea as the US trumpeted its annual w(...)

A North Korean soldier watches the South Korean side at the truce village of Panmunjom in the demilitarized zone separating the two Koreas in Paju, north of Seoul today. Photograph:  Lee Jung-hoon/Yonhap/Reuters

South Korea's defense chief has confirmed that North Korea has moved to its east coast a missile with a "considerable" range, but that it was n(...)