Taiwan condemns China-Indonesia naval drills east of island

Taiwan's government issued a sharp rebuke this week after learning that China and Indonesia plan to conduct joint naval exercises in waters east of the island—a first for the two countries and a move Taipei views as a deliberate show of military force in one of the world's most contested regions.

The drills represent a notable escalation in China's military posturing around Taiwan. While Beijing has conducted naval operations in the Taiwan Strait for years, partnering with Indonesia to do so marks a shift in how it projects power in the area. The location matters enormously. Waters east of Taiwan sit along critical global shipping lanes and fall within a zone where Beijing has been steadily expanding its military presence and asserting territorial claims that Taipei disputes.

Taiwan's response was unsparing. Officials characterized the planned exercise as dangerous and reckless, framing it as part of a broader pattern of Chinese military intimidation. The island's government sees the involvement of Indonesia—a major Southeast Asian power with its own maritime interests in the region—as particularly concerning. It suggests that China is successfully drawing regional partners into activities that could normalize military operations in sensitive waters and further isolate Taiwan diplomatically.

Indonesia, for its part, has taken a more measured stance. Officials there described the naval drill as routine military cooperation, the kind of exercise navies conduct regularly with partners around the world. From Jakarta's perspective, the drill is neither unprecedented nor inherently provocative. Indonesia maintains complex relationships with both China and the United States, and it has incentives to avoid being drawn into the escalating tensions between Beijing and Taipei. The country has its own maritime concerns and does not want to be seen as choosing sides in a dispute it prefers to keep at arm's length.

Yet the timing and location of the exercise send a signal that extends beyond routine military training. China has been working to deepen military ties with countries across Southeast Asia, and Indonesia—the region's largest economy and most populous nation—represents a significant prize. Joint exercises serve multiple purposes: they build interoperability between navies, they demonstrate capability and resolve, and they send messages to other regional actors about shifting alignments and power dynamics.

For Taiwan, the drills underscore a growing isolation. As China expands its military partnerships and conducts operations closer to the island's shores, Taiwan finds itself with fewer allies willing to openly challenge Beijing's moves. The United States remains Taiwan's primary security guarantor, but it cannot be everywhere at once. The involvement of Indonesia—a country with no formal security treaty with Taiwan—highlights how China's diplomatic and military strategy is gradually reshaping the regional balance.

The Taiwan Strait itself remains one of the world's most important waterways, with trillions of dollars in annual trade passing through it. Any military activity there carries implications far beyond the immediate region. The drills signal that China is willing to use its growing naval capabilities to assert control over these waters, and that it is finding partners willing to participate in exercises that, whatever their stated purpose, serve to normalize Chinese military operations in the area.

What happens next will depend partly on how other regional powers respond. The United States has made clear its commitment to freedom of navigation in the strait, and it has conducted its own operations there to underscore that commitment. But as China's military grows stronger and its diplomatic reach expands, the balance of deterrence in the region is shifting. Taiwan's condemnation of the drills reflects a real anxiety about what that shift means for its future.