US Acknowledges Undisclosed On-Orbit Weapons

The United States has publicly acknowledged for the first time that it deployed undisclosed “on-orbit space control weapons” intended to defend U.S. and allied forces against hostile actions. Washington has not disclosed the systems’ number, location, deployment date or precise capabilities; experts say they may rely on non-kinetic tools such as jammers or electronic-warfare systems, though the systems could have defensive or offensive uses, including disrupting or disabling adversary satellites. China and Russia condemned the disclosure as an escalation and called for space to remain free of weapons or fully demilitarized. Analysts said the announcement confirmed long-standing suspicions and could intensify strategic competition and an arms race in orbit amid growing concern over Chinese and Russian counterspace programs. The 1967 Outer Space Treaty bans nuclear weapons and other weapons of mass destruction in space but does not clearly prohibit many conventional counterspace technologies. Separately, U.S. war games reportedly found gaps in Washington’s ability to detect, attribute and respond to a nuclear weapon detonated or deployed in space, increasing fears of rapid escalation and disruption to satellite-dependent communications.