What to know about China’s rare ballistic missile test and why it raises concerns

China’s navy test-launched a long-range ballistic missile from a nuclear-powered submarine in the South Pacific, drawing protests from the U.S., New Zealand, Australia, and Japan. Experts suggest it could be a JL-2 or JL-3 missile, while China claims the launch was routine and compliant with international law. The test occurred in the South Pacific Nuclear Free Zone, raising concerns about treaty violations.