According to the Yomiuri Shimbun, Cablegate had sent a “shock wave” through the Japanese government. Every day, the Foreign Ministry checked to see which documents got posted online. Some officials worried that the documents might contain information about the negotiations over the relocation of Marine Corps Air Station Futenma.
“It would be very serious if information on such negotiations comes to light,” said one Japanese bureaucrat.
Yes it would. And it would be particularly serious if the part that has to do with me came to light.
According to the WikiLeaks website, out of all the U.S. embassies in the world, WikiLeaks had the third highest number of documents from the U.S. embassy in Japan. It had 5,697 diplomatic cables from that embassy. This suggests that WikiLeaks wanted to pressure the Japanese government (and the Iraqi government and the Turkish government, as those countries were the two with more documents that Japan).