China Conducts Submarine-Launched Ballistic Missile Test

China conducted a submarine-launched ballistic missile test in the South Pacific on Monday, 6 July 2026. The missile carried a dummy warhead and was launched at 12:01 p.m. local time, or 0401 GMT, from one of China’s nuclear-powered submarines.

Submarine-Launched Ballistic Missile

A submarine-launched ballistic missile is a ballistic missile fired from a submarine platform. Such missiles are part of sea-based nuclear deterrence systems and are associated with strategic forces in several nuclear-armed states.

South Pacific Nuclear Free Zone

The South Pacific Nuclear Free Zone was established under the Treaty of Rarotonga in 1985. It covers the South Pacific region and restricts the stationing, testing, and acquisition of nuclear explosive devices in the zone.

Strategic Missile Tests in the Pacific

This was China’s second strategic missile test in the Pacific since September 2024, when it fired an intercontinental ballistic missile. It was also the first known submarine-based missile test from a nuclear-powered submarine since 1982.

Important Facts for Exams

• The Treaty of Rarotonga created the South Pacific Nuclear Free Zone in 1985.
• An intercontinental ballistic missile has a range of more than 5,500 kilometres.
• A nuclear-powered submarine uses a nuclear reactor for propulsion.
• Joint Sea-2026 is a China-Russia naval exercise held off Qingdao on the Chinese coast.

Regional Notifications and Diplomatic Responses

Japan was informed in advance and asked China to reconsider the test. New Zealand was informed only hours before the launch, and Australia, New Zealand, and Japan criticised the test.

China-Russia Naval Exercises

China and Russia began annual joint naval exercises named Joint Sea-2026 off Qingdao on the same day as the missile launch. The exercise series is held in waters near the Chinese coast and involves naval cooperation between the two countries.