China has taken resolute measures to safeguard its sovereignty over Diaoyu Dao over the past years, says a white paper issued by the Chinese government on Tuesday.

The white paper, titled "Diaoyu Dao, an Inherent Territory of China", was released by the State Council Information Office of the People's Republic of China.

China has, through the diplomatic channel, strongly protested against and condemned the backroom deals between the United States and Japan over Diaoyu Dao, says the white paper.

On August 15, 1951, before the San Francisco Conference, the Chinese government made a statement: "If the People's Republic of China is excluded from the preparation, formulation and signing of the peace treaty with Japan, it will, no matter what its content and outcome are, be regarded as illegal and therefore invalid by the central people's government."

On September 18, 1951, the Chinese government issued another statement stressing that the Treaty of San Francisco is illegal and invalid and can under no circumstances be recognized.

In 1971, responding to the ratifications of the Okinawa Reversion Agreement by the US Congress and Japanese Diet, the Chinese Foreign Ministry issued a stern statement which pointed out that the Diaoyu Dao Islands have been an indivisible part of the Chinese territory since ancient times.

In response to Japan's illegal violation of China's sovereignty over Diaoyu Dao, the Chinese government has taken active and forceful measures such as issuing diplomatic statements, making serious representations with Japan and submitting notes of protest to the United Nations, solemnly stating China's consistent proposition, principle and position, firmly upholding China's territorial sovereignty and maritime rights and interests, and earnestly protecting the safety of life and property of Chinese citizens, according to the white paper.

China has enacted domestic laws, which clearly provide that Diaoyu Dao belongs to China. In 1958, the Chinese government released a statement on the territorial sea, announcing that Taiwan and its adjacent islands belong to China.In light of Japan's repeated violations of China's sovereignty over Diaoyu Dao since the 1970s, China adopted the Law of the People's Republic of China on the Territorial Sea and the Contiguous Zone in 1992, which unequivocally prescribes that "Taiwan and the various affiliated islands including Diaoyu Dao" belong to China, the white paper says.

The 2009 Law of the People's Republic of China on the Protection of Offshore Islands establishes the protection, development and management system of offshore islands and prescribes the determination and announcement of the names of offshore islands, on the basis of which China announced the standard names of Diaoyu Dao and some of its affiliated islands in March 2012. On September 10, 2012, the Chinese government issued a statement announcing the baselines of the territorial sea of Diaoyu Dao and its affiliated islands. On September 13, the Chinese government deposited the coordinates table and chart of the base points and baselines of the territorial sea of Diaoyu Dao and its affiliated islands with the Secretary-General of the United Nations, according to the white paper.

China has maintained routine presence and exercised jurisdiction in the waters of Diaoyu Dao. China's marine surveillance vessels have been carrying out law enforcement patrol missions in the waters of Diaoyu Dao, and fishery administration law enforcement vessels have been conducting regular law enforcement patrols and fishery protection missions to uphold normal fishing order in the waters of Diaoyu Dao. China has also exercised administration over Diaoyu Dao and the adjacent waters by releasing weather forecasts and through oceanographic monitoring and forecasting, the white paper says.

Over the years, the issue of Diaoyu Dao has attracted attention from Hong Kong and Macao compatriots, Taiwan compatriots and overseas Chinese. Diaoyu Dao has been an inherent territory of China since ancient times. This is the common position of the entire Chinese nation. The Chinese nation has the strong resolve to uphold state sovereignty and territorial integrity. The compatriots across the Taiwan Straits stand firmly together on matters of principle to the nation and in the efforts to uphold national interests and dignity, according to the white paper.

The compatriots from Hong Kong, Macao and Taiwan and the overseas Chinese have all carried out various forms of activities to safeguard China's territorial sovereignty over Diaoyu Dao, strongly expressing the just position of the Chinese nation, and displaying to the rest of the world that the peace-loving Chinese nation has the determination and the will to uphold China's state sovereignty and territorial integrity, the white paper says.