In August 2020, the Center for Strategic and International Studies (CSIS), a U.S. think tank, summarized that "China uses indirect methods to influence Japan. There are hidden channels, such as influencing Okinawa's movements through fundraising, influencing Okinawan newspapers to promote Okinawa's independence, and eliminating U.S. forces there." In contrast, the Okinawa Times and Ryukyu Shimpo published articles denying Chinese funding.「沖縄独立」に中国暗躍！ 外交、偽情報、投資で工作…米有力シンクタンク“衝撃”報告書の中身「沖縄の新聞に中国資金」 米シンクタンクのCSIS報告書に誤り 細谷雄一慶応大教授の発言引用沖縄タイムス＋プラス 沖縄タイムス＋プラス ニュース 政治 「中国が沖縄の新聞に資金提供」 報告書の記述撤回 米国シンクタンク「戦略国際問題研究所」China’s Influence in Japan: Everywhere Yet Nowhere in Particular CSIS In light of the Okinawan newspaper articles, Tetsuhide Yamaoka, who supervised the Japanese translation of the Silent Invasion written by Clive Hamilton, gave a lecture titled "Silent Invasion: What Okinawans Want You to Know About China's Gentry Craft" at the Urasoe City Industrial Promotion Center on October 10, 2020, organized by the Japan Okinawa Policy Research Forum. In his lecture, "Silent Invasion: How the CCP is working to make Okinawa Prefecture a dependency of China," Yamaoka stated that the CCP "uses indirect methods that are less visible, such as advertisements, rather than stocks, etc."【沖縄の声】主催：日本沖縄政策研究フォーラム!山岡鉄秀氏「サイレント・インベージョン～沖縄県民に知ってほしい中国属国化工作の手口～」
