Hitoshi Tanaka, former Deputy Minister for Foreign Affairs of Japan, said Friday that Japan should take a realistic view of history.
Beijing warns Washington to "stay vigilant" about Japan and not to be "permissive or supportive" of Tokyo's provocations.
Japanese Defense Minister Itsunori Onodera held talks on Sunday with visiting US Defense Secretary Chuck Hagel, centering on improving bilateral defense cooperation.
Japan sparked domestic and global concerns on Tuesday by overturning a ban on military hardware exports in a move to help "restore its military power".
The Japanese Cabinet approves new guidelines on arms export, marking a major change on the country's defense stance for the first time in 50 years.
The world's longest-serving death row inmate was freed Thursday by a Japanese court which found investigators had likely fabricated evidence in the murder case that put the former pro boxer behind bars for nearly half a century.
In her almost nine years as chancellor of Germany, Angela Merkel has won respect around the world for her dignified leadership, strong moral sense and disciplined, responsible fiscal policies.
China has added its voice to international concerns over Japan's large stockpile of nuclear materials, saying the Japanese have exceeded their needs in nuclear power.
Japan will hand over "sensitive nuclear material" to the United States for destruction as part of the efforts to "prevent unauthorized actors, criminals, or terrorists from acquiring such materials."
Diaries shed lights on massacre, Yang Yang reports in Nanjing
Japan will not revise its official apology over wartime sex slavery, or "comfort women", made by then Chief Cabinet Secretary Yohei Kono in 1993.
Japanese Prime Minister Shinzo Abe said here Monday that the country will restart nuclear power plants whose safety are confirmed by nuclear regulators.