China’s JL-3 Submarine Missile Test Shakes Pacific Region
On July 6, 2026, the People’s Liberation Army (PLA) Navy conducted its first confirmed submarine-based ballistic missile test in over 40 years, launching a strategic missile carrying a dummy warhead from a nuclear-powered submarine into the Pacific Ocean. The test, which analysts believe involved the JL-3 intercontinental-range ballistic missile (ICBM), marked a historic milestone in China’s naval deterrence capabilities and drew sharp international criticism from the United States, Japan, Australia, New Zealand, and Taiwan.
A Historic Launch
The missile was fired at 12:01 p.m. local time from a PLA Navy strategic nuclear submarine toward high seas in the Pacific Ocean, according to Xinhua. The dummy warhead traveled approximately 7,300 kilometers (4,536 miles) and landed precisely in designated waters. State media reported the launch just 59 minutes after it occurred.
This was China’s first confirmed submarine-based missile test since 1982, the first known firing from a nuclear-powered submarine, and the first SLBM test into international open waters. It also marked China’s second ICBM test in international waters since 1980, following a land-based DF-31 launch in September 2024.
The JL-3 Missile and China’s Nuclear Triad
The exact missile type has not been officially confirmed, but the Global Times, citing military experts, suggested it was likely the JL-3, China’s most advanced submarine-launched intercontinental ballistic missile. The JL-3 debuted at a military parade in Beijing in September 2025 and has a range of over 10,000 kilometers (6,214 miles), capable of reaching the continental United States from Chinese waters.
Chinese military affairs expert Zhang Junshe told the Global Times that the test carried “far-reaching significance.” He noted that “within the nuclear triad, strategic nuclear submarines are internationally recognized as the most secure platform for secondary nuclear counterstrike capability. Submarines conduct long-term underwater mobile patrols, making them extremely difficult to detect and track, with strong battlefield survivability.”
Analysts believe the missile was fired from one of China’s six Type-094 (Jin-class) nuclear-powered ballistic missile submarines (SSBNs), based primarily out of Hainan Island. State media confirmed it was a strategic missile submarine but did not identify the class.
International Condemnation and Notification Controversy
Beijing described the launch as a “routine arrangement” in its annual military training program. Chinese Foreign Ministry spokesperson Mao Ning stated at a press conference that the test “is consistent with international law and customary international practice and is not directed at any specific country or target,” adding that “the whole process was safe, standard and professional.”
However, the notification process drew significant criticism. According to Reuters via Baird Maritime, the United States received only a few hours’ notice, Japan was notified but strongly urged China to reconsider, and Australia received about 23 hours’ notice. This fell short of the 48-hour notification standard under the Hague Code of Conduct (HCOC), which China has not ratified.
Australian Prime Minister Anthony Albanese called the test “a provocative act by China which does destabilise the region,” noting that “it is standard procedure for tests such as this for there to be given 48 hours notice. This was not done on this occasion.”
A US State Department official said China’s notification “came only a few hours before the launch and failed to provide sufficient detail, falling considerably short of standards adopted by all other P5 nuclear weapon states.” The official added that “the test occurred amid China’s rapid and opaque nuclear weapons build-up and is of great concern to the region.”
New Zealand Foreign Minister Winston Peters called the test “an unwelcome and concerning development,” stating that Pacific nations “have no interest in China using the South Pacific as a testing site for missile capability.” Solomon Islands Prime Minister Matthew Wale warned that China remained a friend, but “the launch was not the act of a friend.”
Strategic Context and Analysis
The test occurred against a backdrop of significant regional developments. It coincided with the signing of a mutual defense treaty between Australia and Fiji, and with the kickoff of the Joint Sea 2026 naval exercise between China and Russia in Qingdao.
According to analysts at the Center for Strategic and International Studies (CSIS), several drivers likely motivated the test. These include technical validation of the JL-3’s near-full-trajectory performance, political signaling of displeasure at Australia’s defense treaty with Fiji, countering US-led RIMPAC exercises, and demonstrating Sino-Russian strategic alignment.
Meia Nouwens, a senior fellow at the International Institute for Strategic Studies, noted that China could be “sending a signal of its discontent about the Australia-Fiji agreement. That said, the launch could be counterproductive and negatively affect China’s image among countries in the South Pacific.”
Collin Koh, a security scholar at Singapore’s S. Rajaratnam School of International Studies, told Reuters that while “there are still challenges ahead,” China appears to be “getting close to an operational strike capability here…they are probably trying to demonstrate that even if they can’t get into a position to hit the continental US, they could still target Guam and Hawaii.”
A Growing Nuclear Arsenal
China is undergoing the largest qualitative and quantitative expansion of its nuclear arsenal in its history, tripling from approximately 200 weapons to over 600 in the last six years, according to Pentagon reports. China is constructing vast ICBM silos and expanding its missile inventory.
China maintains an official policy of no-first-use of nuclear weapons. For this policy to be credible, China needs a survivable second-strike capability. If its nuclear-armed submarines can operate undetected, China can strike back even if its land-based weapons are destroyed in a first strike, making the sea-based leg of its nuclear triad particularly important.
The Chinese Defense Ministry, responding to Reuters questions, said that “China’s efforts to modernise its nuclear forces are intended to safeguard national strategic security and maintain global strategic stability.”
What to Watch For
The test has heightened concerns among Pacific nations about their region being used as a military theater. The missile’s landing zone was in the South Pacific Nuclear Free Zone established by the Treaty of Rarotonga, adding symbolic weight to the event.
The US has urged China to “engage in meaningful arms control discussions and commit to a regularised notification arrangement for all intercontinental-range ballistic missile and space launches.” However, Beijing has repeatedly rebuffed these efforts, and China remains the only major ballistic missile state entirely outside the HCOC.
As China continues to modernize its strategic forces and expand its SSBN fleet, the international community will be watching closely for signals about Beijing’s nuclear posture and its willingness to engage in transparency and confidence-building measures. The July 6 test has made clear that China’s sea-based nuclear deterrent is no longer a theoretical capability—it is now a demonstrated one.