Counterbalance at Sea: How Japan's Re-Armament Tilts the Scales

The Pacific Ocean is the Earth’s largest and deepest ocean, covering one-third of the Earth’s surface, housing the most varied array of algae & animals, and navigating trillions of dollars in trade annually. Yet, out of all the activities that take place here, the most interesting might just be the ongoing recalibration of power, as one pacifist nation’s actions quietly start 

a new era. Japan, in the legacy of WW2, is a war-renouncing nation.

Illustration by The Geostrata

This is a reference to Article 9 of The Japanese Constitution that states:

“Aspiring sincerely to an international peace based on justice and order, the Japanese people forever renounce war as a sovereign right of the nation and the threat or use of force as a means of settling international disputes”.

But slowly, circumstances are changing.

In 2026, Japan is undergoing its most significant militarization since 1945. It continues to acquire counter-strike technology and other tools of military might, in an attempt to transform from a “peace state” to a “security provider”. How is it achieving this? What are its driving factors? What are its repercussions for the involved regional actors, and how is this affecting Japan itself? These are some of the questions that will be the main concern of this article.

ORIGINS AND DRIVERS OF JAPAN’S NEW SECURITY POSTURE

After Japan's defeat in World War 2, the U.S.-led Allied Occupation began the process of demilitarization and democratization. At the core of these new policies was the famous Article 9 of the Japanese Constitution, which provided that "land, sea, and air forces, as well as other war potential, will never be maintained". 

This idealistic approach was tested several times during the Cold War, when the fear of communism spreading made a pacifist Japan vulnerable in the U.S.'s vision of a global order. As a consequence, this led to the "Reverse Course", where Japan was rebuilt as a regional defense against the spread of Soviet values. This can be seen through many instances, such as the U.S.’s push for Japan's rearmament during the Korean War (1950-53). A National Police Reserve was created in 1950, which in 1954 evolved into the Japan Self-Defense Forces (JSDF). In fact, this was accepted by adopting a new interpretation of Article 9: The Right to Self-Defense. 

Further, the 1976 Cap marked an attempt to establish its identity as a peace state, wherein Japan in 1976 put a cap on its defense spending at 1% of Gross National Product (GNP). In the same year, it also first announced its “Three Non-Nuclear Principles”, reiterating its support for a nuclear-free world.

After the Cold War era was over, the next major shock was the 1991 Gulf War, where Japan's policy decision to contribute financially but not send any personnel drew severe international criticism. As a result, the Peacekeeping Law (1992) was passed, which was the first step in allowing the Japanese forces to operate beyond Japan, though it was restricted to non-combat roles. In the 2000s, the War on Terror happened, and Japanese forces crossed boundaries post 9/11. This era witnessed the passing of several laws that allowed deployment to the Indian Ocean and later Iraq.

This made the presence of Japanese forces in combat zones around the world normal. Now, Japan was transforming, with its identity evolving towards alliance contribution.

As we look at the events of the 2000s so far, it is important to note that parallelly, two other powers were also developing, both as threats and regional actors. Post liberalization, the Chinese Economy was booming and so was its presence in the South China Sea with its bold military assertions and boundary claims. Similarly, North Korea’s recurring nuclear and missile tests were another major concern, creating a threatening environment full of security fears and instability. This fear never really stopped, being further fueled by the Russia-Ukraine War and Taiwan-related tensions that continue to spark chaos amidst an already volatile region’s power imbalance.

WHEN AND HOW DID THE MILITARISATION FORMALLY BEGIN?

It was 2014, when Prime Minister Shinzo Abe, a Nationalist leader who first took office in 2006, advocated for strong militarization and a revision of the nation's pacifist policies. Following such debates by the cabinet, polls in the Asahi Shimbun were conducted, and any re-interpretation ideas were met with significant backlash from both the public and the political opposition. Following this, Prime Minister Abe's Party, i.e., the Liberal Democratic Party (LDP), utilized their political allies and achieved a supermajority in both houses of parliament. This enabled them to bypass the need for a referendum, passing controversial security bills.

In order to limit the backlash that their decisions received, the ruling party’s government decided to approach its immediate goals through an approach of ‘Cabinet Reinterpretations’ instead of any amendments to the constitution. They also emphasized their objective of deterrence, as a response to the deteriorating security environment, reiterating the use of these new legislations in protecting Japan against any external threats. 

2022 was the next pivotal year that marked major militarization milestones. Under the administration of Prime Minister Fumio Kishida, three major strategic documents were approved, namely: the National Security Strategy, National Defense Strategy and Defense Buildup Program. For the first time after 1945, Japan had formally abandoned its defense-oriented pacifist approach.

The government announced that Japan will acquire “Counter Strike Capabilities” which include key technology, such as long-range cruise missiles capable of targeting countries like China and North Korea. Japan also announced that it will be using 2% of its GDP by fiscal year 2025 (originally planned for the fiscal year 2027) for defense-related expenditures, potentially making it the third largest defense spender, only after the United States (first) and China (second).

REACTIONS AT HOME AND ABROAD

This buildup, although not surprising, still triggered fierce reactions both nationally and internationally. Domestically, it caused public protests, with many citizens citing concerns about welfare budgets being squeezed as money is redirected towards defense expenditure. 

Internationally, reactions vary. With major players like China, which has openly criticized Japan's decision to re-militarize, viewing it as an attempt to distance itself from its initial peaceful post-war stance. They claim that this “new militarism” is a matter of severe concern, which threatens the stability of the region and undermines the established international order established post-World War II.

Compared to China, South Korea's reaction is more complex as they enter a state of dilemma. Both Japan and South Korea share common concerns about North Korea's nuclear program. Yet, their engagement is careful and realistic, Korea remains skeptical of Japan's military growth.

On the international stage, the United States and Australia have expressed strong support for Japan's changing security role. The U.S., especially under the Biden and Trump administrations, has encouraged Japan to take on a greater role in regional defense responsibilities as part of a plan to counter security threats in the South China Sea and the larger Indo-Pacific.

This is further strengthened by Australia, as both Washington and Canberra seek stronger cooperation through forums like QUAD. Southeast Asian countries have differing opinions, as they see Japan as a viable alternative in an effort to counterbalance China’s growing power. Yet, ASEAN countries are cautious about increasing competitiveness between the major powers of the world. 

JAPAN IS TILTING THE SCALES, BUT AT WHAT COST?

Overall, it can be assumed that Japan’s reformative attempts at tilting the scales might actually be successful, as both regional and global players continue to be wary of the changes these shifts bring to the existing power structures of the Pacific Ocean. But many important questions continue to remain unanswered: Is Japan’s new approach actually adequate enough to serve as an alternative to traditional U.S. or China-led security cooperation? Will this rearming act as a deterrent and create a stable balance of power? Or will it trigger a new arms race, increasing the risk of military confrontation?

For the Indo-Pacific, it further fragments already heated and intensely divided waters. Will it lead to newfound peace, or further chaos? This is something only time can tell. Ultimately, Japan’s policy decisions continue to leave the fate of the ocean at a knife’s edge, with every move calculated to deter and provoke the very conflict it aims to avoid.

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BY ANANYA SHUKLA

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