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Topic: Air Warfare Blog Brand: The Buzz Region: Americas, and Asia Tags: Air Defense, Donald Trump, Golden Dome, Japan, Sanae Takaichi, and United States Japan Wants to Join America’s Golden Dome March 18, 2026 By: Harrison Kass
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Far from being a “free-rider,” Japan is a pioneer in aerospace technology—and its defense industrial base has much to offer the United States in a partnership.
Japan is expected to announce its entry into the United States’ “Golden Dome” missile defense initiative later this week—a development that coincides with intensifying regional threats from China and North Korea.
On Thursday, during a meeting with President Donald Trump in Washington, Japanese Prime Minister Sanae Takaichi is expected to outline Tokyo’s interest in a space defense partnership with the United States, according to Reuters. The move signals growing Japanese interest in expanding cooperation with the US on missile defense and strategic security technologies.
What Is the Golden Dome?
The Golden Dome initiative is a proposed US missile defense program designed to strengthen America’s ability to detect and intercept advanced missile threats.
The concept of a “Golden Dome” missile defense shield over the United States is simple in theory, but complicated in execution. It relies upon ground-based interceptors and Patriot missile batteries, and could include more experimental components as they are developed. Key elements of the initiative are likely to include expanded missile interceptor networks, advanced early warning systems, space-based sensors and tracking capabilities, and potentially orbital systems designed to detect and counter missile threats.
The program—reminiscent of Ronald Reagan’s unrealized “Star Wars” initiative in the 1980s—reflects contemporary concerns about new types of missile threats, especially hypersonic glide vehicles currently under development in China and Russia.
Why Does Japan Want to Join the Golden Dome?
Japan is interested in the Golden Dome because it faces some of the most serious missile threats of any nation in the world. Japan is within close range of North Korean ballistic missiles, which Pyongyang tests on a regular basis—most recently on Monday. At the same time, China is nearby, rapidly expanding its own missile arsenal while experimenting with weapons designed to evade traditional missile defenses.
By joining the Golden Dome, Japan could strengthen its own domestic defenses, particularly against emerging hypersonic threats, while contributing to a broader allied missile defense network.
Here’s What Japan Could Bring to the Golden Dome Program
Japan isn’t just joining the program to ride on the United States’ coattails. Indeed, Tokyo is a key pioneer in aerospace technology, and could make significant contributions to the program.
One benefit to Japanese participation could be in helping the United States to improve its missile production capacity—crucial at a time when the US has been drawing down its stockpiles of key munitions due to multiple conflicts and security commitments around the world. The Pentagon has already pushed defense contractors to increase production tempo for interceptors, missiles, and other critical munitions, but America’s industrial constraints will limit production, making Japan’s production capacity an attractive asset for accelerating and maintaining the Golden Dome initiative.
America has increasingly eyed Japan as a valuable partner in expanding the Western defense industrial base. For example, Japan recently exported Patriot interceptor missiles produced under license to the United States, marking a major shift from Tokyo’s longstanding restrictions on exporting lethal military equipment.
While details of Japan’s involvement have not been specified, the prospect of Japanese involvement signals that missile defense is becoming a shared strategic priority among US allies. And as Western missile inventories grow depleted, partnerships with technologically advanced allies like Japan will become increasingly important for sustaining deterrence.
About the Author: Harrison Kass
Harrison Kass is a senior defense and national security writer at The National Interest. Kass is an attorney and former political candidate who joined the US Air Force as a pilot trainee before being medically discharged. He focuses on military strategy, aerospace, and global security affairs. He holds a JD from the University of Oregon and a master’s in Global Journalism and International Relations from NYU.
The post Japan Wants to Join America’s Golden Dome appeared first on The National Interest.
Источник: nationalinterest.org