China’s unexpected announcement of a rare test-firing of an intercontinental ballistic missile (ICBM) into international waters on Wednesday has sparked protests from neighboring countries. The launch, China’s first of its kind in over 40 years, was described by Beijing as ‘routine’ and not directed at any specific country. Chinese media reported that ‘ relevant countries’ were informed in advance.

However, Japan claimed it had not received any prior warning and expressed serious concerns, along with Australia and New Zealand. The missile test has heightened tensions in the Indo-Pacific region, with analysts pointing to China’s growing long-range nuclear capabilities.

The United States has previously warned about China’s expanding nuclear arsenal as part of its defense modernization efforts. ICBMs, which can travel over 5,500 kilometers, place the US mainland and Hawaii within China’s striking range. Nevertheless, China’s nuclear arsenal remains significantly smaller than that of the US or Russia, with Beijing maintaining that its stockpile is solely for deterrence.

China’s defense ministry confirmed the missile was launched at 08:44 local time (04:44 GMT) and carried a dummy warhead, landing in a designated area believed to be in the South Pacific. They emphasized that the test was part of regular “annual training.”

While other countries like the US frequently conduct such tests, China typically tests its ICBMs within its own borders, often in the Taklamakan Desert in Xinjiang. Nuclear missile analyst Ankit Panda noted that this shift in testing approach could reflect China’s ongoing nuclear modernization.

The missile test drew swift reactions from other nations. Japan expressed “serious concern” over China’s military buildup, while Australia labeled the launch “destabilizing” and requested an explanation from Beijing. New Zealand also voiced alarm, calling the test “unwelcome and concerning.”

Though analysts like Panda do not believe the test was meant to send a political message, they acknowledged it serves as a reminder of China’s rapidly advancing nuclear capabilities. Leif-Eric Easley, an international relations professor in South Korea, suggested that the launch signals to Washington that any direct involvement in a Taiwan conflict could leave the US homeland vulnerable to attack. He also noted that the test demonstrates China’s readiness to fight on multiple fronts.

Drew Thompson, a senior fellow in Singapore, emphasized the significance of the timing, given ongoing tensions between China and countries like Japan, the Philippines, and Taiwan. While relations between Beijing and Washington have improved over the past year, China’s assertive actions in the region, including recent naval collisions with Philippine ships and airspace violations with Japan, continue to raise concerns.