Last month, Coast Guard Administration patrol boats entered the waters around the Diaoyutai Islands (釣魚台) — known as Senkaku in Japan — and this month, three boats from China’s Fishery Law Enforcement Command (FLEC) entered the 12 nautical mile (22km) zone surrounding the islands.
These events, which both drew protests from Japan, are of course connected to statements this spring by Tokyo Governor Shintaro Ishihara that the city should buy four of the islands and statements by Japanese Prime Minister Yoshihiko Noda earlier this month that the Japanese government is considering buying them.