Japan’s Defense Buildup: Concerns Rise Amidst Election Win & Staffing Shortages

Tokyo, Japan – Japan’s ruling Liberal Democratic Party (LDP) secured a significant victory in the February 8th general election, bolstering Prime Minister Sanae Takaichi’s ambitious policy of “fundamentally strengthening” the nation’s defense capabilities. However, concerns are mounting within the Ministry of Defense and the Self-Defense Forces (SDF) regarding the feasibility of implementing such a rapid expansion given existing logistical and personnel constraints.

The government has already increased the defense budget for fiscal year 2025 to approximately ¥11 trillion (roughly $104 billion USD), representing 2% of Japan’s Gross Domestic Product. The election outcome is expected to accelerate the procurement of advanced weaponry and the creation of new organizational structures designed to counter perceived threats from China, according to reports.

Despite the political momentum, anxieties are growing within the defense establishment about what some officials describe as a “rush” to expand capabilities without adequate consideration for practical realities. A key example cited is the “Shield” plan, which aims to deploy thousands of attack drones.

While the government has earmarked over ¥100 billion (approximately $730 million USD) for drone procurement in the 2026 budget, internal critics point to the lack of established tactical doctrines for their deployment and a shortage of suitable training facilities. Some within the ministry have labeled the plan as “mere window dressing,” lacking substantial operational substance.

The pursuit of next-generation, conventionally-powered submarines – often framed as a move towards a nuclear-powered fleet – also faces significant hurdles. A chronic manpower shortage within the SDF, particularly a lack of specialized personnel required to operate and maintain such complex vessels, is a major obstacle. The SDF is currently short over 20,000 personnel against its authorized strength. Submarine duty is widely considered an undesirable assignment.

the plan potentially clashes with Article 9 of the Japanese constitution and the existing “Act on the Peaceful Use of Nuclear Energy,” which governs nuclear technology within the country. Addressing these legal complexities will be crucial for the project’s advancement.

The increasingly assertive stance towards China under Prime Minister Takaichi is also contributing to heightened tensions and a growing sense of fatigue within the SDF. Since December of last year, emergency scrambles of SDF aircraft have become increasingly frequent, leading to concerns among defense officials that a parallel diplomatic effort to prevent accidental escalation is urgently needed, alongside the military buildup.

However, Japan is not solely focused on offensive capabilities. The SDF is preparing to launch an integrated medical information system in 2028, designed to instantly transmit casualty information from frontline units to rear hospitals. This initiative is a direct response to the potential for mass casualties in a conflict scenario, particularly in the Nansei Islands region.

the SDF is significantly expanding mental healthcare services for its personnel. New psychiatric units will be established at hospitals in locations like Okinawa, reflecting lessons learned from the experiences of soldiers in conflicts such as the war in Ukraine, where post-traumatic stress disorder (PTSD) has been a significant concern.

The push for increased defense spending comes as Japan navigates a complex geopolitical landscape. The country is increasingly concerned about China’s growing military power and its assertiveness in the East and South China Seas, as well as North Korea’s continued development of ballistic missiles and nuclear weapons. The United States remains Japan’s key ally, and the alliance is seen as crucial for maintaining regional stability.

In October 2025, Prime Minister Takaichi met with U.S. President Donald Trump at the U.S. Navy’s Yokosuka base, signaling a continued commitment to the U.S.-Japan alliance. Prior to that meeting, Japan signaled its intention to move beyond its long-standing policy of limiting defense spending to 1% of GDP, initially aiming for 2% by 2027, but now accelerating that timeline. During the meeting with Trump, Takaichi reportedly faced pressure to increase defense spending further, potentially aligning with the 5% target set by NATO members.

The military buildup in the Nansei Islands, a chain of islands stretching southwest from Kyushu, is particularly noteworthy. This deployment is intended to send a clear message to China that Japan will defend its interests and its population in the region, particularly in light of growing concerns about potential Chinese military action towards Taiwan.

While the LDP’s electoral victory provides a strong mandate for Prime Minister Takaichi’s defense policies, the challenges of translating political will into tangible military capabilities remain substantial. Balancing the need for a stronger defense with the practical constraints of personnel, logistics, and budgetary limitations will be a key test for the Takaichi government in the years ahead.