Japan is concerned that China's potentially dangerous maritime activities around the Senkaku Islands could lead to an emergency and Beijing should act according to international rules rather than use force, the Defense Ministry said Tuesday in its white paper for 2013.
The report also expresses concern over North Korea's nuclear and missile threats, saying the country's ballistic missiles are potentially capable of reaching the U.S. mainland — a sign that the missile program has entered a new stage.
The annual report, the first to be published under the administration of Prime Minister Shinzo Abe, emphasizes an increasingly assertive China and defiant North Korea.