Japan's Ministry of Defense released its 2026 Defense White Paper on August 4, warning that China's expanding military reach into the Pacific and intensified pressure campaign around Taiwan represent the defining security challenges for Tokyo. The annual report highlighted Beijing's use of repeated military drills to normalize People's Liberation Army presence near Taiwan and strengthen capabilities for blockades and precision strikes.

Taiwan Strait Named Major Security Concern

The white paper identified Taiwan Strait security as a critical concern for Japan's national defense. According to the Taipei Times, the document noted that China has expanded military activities around Taiwan, using exercises to normalize PLA operations and enhance joint warfare capabilities. The Diplomat reported that the 2026 edition portrayed "China's expanding military reach into the Pacific as the defining feature of Japan's security environment."

The PRC Ministry of Foreign Affairs complained to Japan regarding the white paper on August 5, reflecting Beijing's sensitivity to international attention on its Taiwan posture. China has waged an economic and diplomatic pressure campaign against Japan since November 2025, when Japanese Prime Minister Takaichi Sanae commented that a Taiwan contingency could implicate Japan's own security.

PLA Amphibious Capabilities Under Development

Recent PLA exercises suggest Beijing is developing operational concepts for amphibious landings that integrate lessons from the war in Ukraine. State broadcaster CCTV released footage on August 1 showing what appeared to be a company- or battalion-sized amphibious combined arms formation assaulting a fortified beach. The exercises also featured unmanned systems, indicating the PLA may be preparing concepts for deploying drones and other autonomous platforms during a potential Taiwan invasion.

Japan Ramps Up Defense Despite Pressure

Japan's continued efforts to strengthen its defense posture indicate that Beijing's pressure campaign is failing to achieve its objectives. The Japan Times reported that Tokyo's white paper emphasized cooperation with allies and like-minded nations as crucial to Japan's security, signaling deeper integration with U.S. and regional defense frameworks.

The white paper also cited threats from Russia and North Korea, but analysts noted that China dominated the assessment. CNN reported that the document outlined Japan's military build-up plans, framing them as necessary responses to an increasingly challenging regional environment driven primarily by PRC military expansion.