China and its U.S. ally Japan agreed in 2008 to codevelop gas fields in the region, but negotiations stalled before the two sides could reach an agreement on their official maritime boundaries.

China has begun construction of a new structure in waters between China and Japan in the disputed East China Sea, the Japanese foreign ministry said on Tuesday, adding it has lodged a protest with ...

Japan's defense ministry warns that China-Russia operations and North Korean threats pose the greatest challenge to global order since World War II, in its annual assessment.

TOKYO (AP) — Japan cautioned against China’s rapid acceleration of military activity stretching from its southwestern coasts to the Pacific, describing the moves in a new defense report ...

China and its U.S. ally Japan agreed in 2008 to codevelop gas fields in the region, but negotiations stalled before the two sides could reach an agreement on their official maritime boundaries.