The U.S. Senate approved a key defense policy bill Tuesday stipulating that Washington acknowledges Japanese control of the Diaoyu Islands and that they fall under the scope of a bilateral security treaty, Kyodo reported Wednesday.
The National Defense Authorization Act for fiscal 2013 which covers a year from October said, "The United States reaffirms its commitment to the government of Japan under Article V of the Treaty of Mutual Cooperation and Security."
"While the United States takes no position on the ultimate sovereignty of the Diaoyu Islands, the United States acknowledges the administration of Japan over the Diaoyu Islands," the bill said, adding, "The unilateral actions of a third party will not affect United States acknowledgement of the administration of Japan over the Diaoyu Islands."
Under the Japan-U.S. security treaty, the United States would defend Japan in the event of an armed attack.
U.S. President Barack Obama is expected to sign the bill after passage of the House of Representatives.
China publishes pamphlet on Diaoyu Islands
China on Tuesday published a pamphlet featuring standardized names of the Diaoyu Island and its affiliated islets.
The pamphlet lists the official Chinese names of 71 islands and islets, including the Diaoyu Island, Huangwei Yu (islet) and some geographic entities in their surrounding waters, according to the State Oceanic Administration (SOA).
It also details the acreage, length and width, location and diagrams, site photos and three-dimensional diagrams of the 71 islands and islets and other geographic entities.
Illustrated with documentation and historical data, the pamphlet declares that the Diaoyu Islands have been part of China's inherent territory since ancient times.
The names in the pamphlet were normalized and released earlier September by the SOA in line with the law on island protection and approved by the State Council, or Cabinet.
It will allow the public to have a deeper understanding of information related to the nation's Diaoyu Island and its affiliated islets, according to the SOA.