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TOKYO — The Japanese government is launching an all-out diplomatic offensive to secure international support following a dangerous military encounter with China. As tensions boil over a recent "radar lock-on" incident involving a Chinese carrier-based aircraft and a Japan Self-Defense Forces (JSDF) fighter jet, Tokyo is leveraging its top officials to solidify security ties with key global partners.

High-Stakes Defense Diplomacy

Defense Minister Shinjiro Koizumi has emerged as the face of this diplomatic push. On December 17, 2024, Koizumi held a video conference with British Defense Secretary John Healey. The two leaders shared "grave concerns" regarding the radar illumination incident and the recent joint flight of Chinese and Russian bombers near Japanese airspace, labeling these actions as provocative threats to regional stability.

Beyond the immediate crisis, the talks touched on the Global Combat Air Programme (GCAP)—a trilateral project between Japan, the UK, and Italy to develop a next-generation fighter jet. Koizumi is also reportedly coordinating calls with Philippine Defense Secretary Gilberto Teodoro and South Korean Defense Minister Ahn Kyu-back to further isolate Beijing’s narrative.

"Gaining the understanding of the international community is a vital responsibility of the Defense Minister," Koizumi stated during a press conference, signaling that more high-level meetings are scheduled for the week.

Countering China’s Global Influence

While Koizumi handles the defense front, Prime Minister Sanae Takaichi is preparing for a landmark summit on December 19–20 in Tokyo. Japan will host the leaders of five Central Asian nations—Kazakhstan, Uzbekistan, Kyrgyzstan, Tajikistan, and Turkmenistan.

Chief Cabinet Secretary Minoru Kihara emphasized that the summit aims to promote a "rules-based international order," a phrase often used by Tokyo to counter China's "hegemonic movements." Analysts suggest Takaichi will use these bilateral meetings to explain Japan's stance on the Taiwan Strait, especially following her recent remarks regarding potential Japanese intervention in a Taiwan contingency, which sparked a fierce backlash from Beijing.

This "shuttle diplomacy" is a direct response to the recent activities of China’s Foreign Minister Wang Yi, who has been touring the Middle East and meeting with global counterparts to expand Beijing's sphere of influence.

 
The Push for Nuclear-Powered Submarines

In a move likely to further irritate Beijing, Minister Koizumi is scheduled to visit the U.S. Navy base in Yokosuka on December 19 to inspect a nuclear-powered submarine.

Koizumi has been a vocal advocate for Japan acquiring such capabilities, noting that "nations like Australia and South Korea are moving toward possession." The ruling Liberal Democratic Party (LDP) and its coalition partner, Nippon Ishin no Kai, recently signed an agreement to develop submarines equipped with Vertical Launch Systems (VLS) using "next-generation power sources"—a thinly veiled reference to nuclear propulsion.