Japan and Taiwan increase defense budgets to strengthen First Island Chain.
The Summit at Camp David has drawn to a close, culminating in a robust show of military alignment among the United States, Japan, South Korea, and Taiwan. On Aug. 21, Japan unveiled a significant hike in its defense budget for fiscal year 2024, Taiwan revealed a record-setting budget for the upcoming year, and the United States and South Korea commenced expansive joint military drills. These collective moves amplify the strategic posture along the first island chain and serve as tangible manifestations of the commitments made during the summit.
At the closing press conference of the summit on Aug. 18, the leaders of the United States, Japan, and South Korea shared a united vision for enhanced trilateral security cooperation and emphasized the role their countries will play in fostering a more secure and prosperous global order.
Quadrilateral Coordination: US, Japan, South Korea, and Taiwan
Japan’s daily newspaper Sankei Shimbun reported that the Japanese Ministry of Defense’s fiscal 2024 budget request amounts to an unprecedented 7.738 trillion yen (approximately $52.75 billion), marking a significant escalation from the 6.8219 trillion yen ($46.6 billion) allocated for fiscal 2023.
The proposed budget earmarks 930 billion yen (about $6.35 billion) for ammunition expenses, aimed at augmenting the nation’s sustained combat capabilities. A further 380 billion yen (about $2.6 billion) has been allocated for the initiation of construction for two naval vessels outfitted with the state-of-the-art missile defense system, Aegis Ashore, referred to as “Aegis system equipped vessels (ASEV).”
The budget also includes a 64-billion yen (about $440 million) allocation for the joint development of next-generation fighter jets with the UK and Italy, alongside a 32-billion yen (about $220 million) provision for the development of precision-guided munitions designed for naval and terrestrial targets. Additional budgetary considerations cover the installation of domestically-produced Type 12 surface-to-ship guided missiles on naval vessels, the mass production of hypersonic guided missiles with a range of 3,000 kilometers (about 1864 miles), and the formation of a new logistics entity named the “Maritime Self-Defense Forces Transportation Group” to facilitate equipment and material shipments to Japan’s southwestern islands.
In a strong testament to Japan’s long-term commitment to bolster its defense, the government approved an overarching five-year plan last December, earmarking 43 trillion yen through fiscal 2027 specifically to reinforce national security infrastructure.
Taiwan
In Taiwan, President Tsai Ing-wen has ratified an unprecedented defense budget for the upcoming fiscal year. Ms. Tsai said during a briefing on Aug. 21 that Taiwan’s overall defense budget for the coming year will soar to a record 606.8 billion Taiwan dollars (about $19 billion) from the 359.6 billion Taiwan dollars (about $11 billion) allocated in 2016, and is expected to account for 2.5 percent of its GDP.
She underscored the necessity for Taiwan to fortify its self-defense capabilities as a means to secure national interests and rally international backing.
Steady advancements have been observed in the country’s defense capabilities, including the imminent delivery of 683 eight-wheeled armored fighting vehicles and the first tranche of M1A2T tanks. Taiwan’s Air Force is also set to complete the full upgrade of 141 F-16A/B fighter jets by year-end, along with the introduction of 91 naval vessels and a prototype submarine, expected to be launched this September.
US-South Korea
In sync with the Camp David Summit’s commitment to bolster tripartite cooperation, the United States and South Korea commenced large-scale military exercises on Aug. 21 under the code name “Ulchi Freedom Shield.” These drills, scheduled to run through Aug. 31, aim to fortify the U.S.-South Korean alliance’s joint response mechanisms and preparedness for full-scale war scenarios.
The U.S. and South Korean military confirmed that the drills would encompass over 30 field mobility exercises, a figure that more than doubles last year’s count. Japan’s NHK, citing South Korean sources, revealed that U.S. B-1 bombers might also be integrated into the exercises. In addition, the South Korean Air Force disclosed that one segment of the exercises would focus on the interception of incoming enemy cruise missiles and fighter jets.
Following the initiation of the U.S.-South Korean joint military activities, President Yoon Suk-yeol convened a high-level national security meeting. “True peace is only possible through overwhelming force. We will counter any provocations from North Korea with an overwhelming response,” he affirmed.
This wave of unprecedented defense budgets and comprehensive military drills signals a solidifying alliance among the United States, Japan, South Korea, and Taiwan, aimed at enhancing regional security and stability amid escalating geopolitical tensions.
Encircling the CCP: Unveiling the “12345” Security Structure
As the U.S.-China relationship intensifies, a noticeable transformation has come over the Indo-Pacific security framework, says Taiwanese defense and security expert Su Tzu-Yun. Following this year’s G7 summit in Hiroshima, countries such as South Korea and the Philippines have rejoined the U.S. alliance, reinforcing what Su describes as an “economic NATO.” This change has evolved the once-formidable First Island Chain into a new crescent-shaped encirclement that combines multiple military co-defense mechanisms aimed at containing the Chinese Communist Party (CCP). This multi-layered alliance structure is now being referred to as the “12345” security structure.
The “12345” security structure comprises several layers of defense and cooperation. Firstly, it is anchored by a robust, independent defense system helmed by the United States. Secondly, it incorporates bilateral defense collaboration rooted in the U.S.-Japan and U.S.-
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