US Confirms for First Time It Has Deployed Weapons in Space

The United States has for the first time confirmed that it has deployed weapons in space. Air Force Secretary Troy Meink made the announcement Monday at the Air and Space Cyber Conference in Maryland, stating that the U.S. has fielded "on-orbit space control weapons capable of defending the Joint Force against hostile adversary action."

Meink did not provide further details about the nature of the weapons, how they operate, or whether they are intended to target objects in space or on Earth. The confirmation marks a notable shift in U.S. policy, which has previously focused on warnings about other nations' space-based capabilities.

In 2024, the U.S. said Russia was developing a new anti-satellite weapon that could be launched from space, with the White House at the time describing the danger as not imminent. These reports reflected longstanding worries about space threats from Russia and China, given that much U.S. infrastructure depends on satellite communications.

The announcement comes as the Trump administration has placed growing emphasis on space as a military domain. In 2019, President Donald Trump created the Space Force as a separate military branch. In his second term, he has announced the "Golden Dome" missile defense system, which includes plans to put U.S. weapons in space. Trump said last year that he expected the system would be "fully operational before the end of my term," which ends in January 2029, and would have the capability of intercepting missiles "even if they are launched from space." Trump also directed the Pentagon to pursue the space-based interceptors in an executive order during the first week of his presidency. The Congressional Budget Office estimated that just the space-based components of the Golden Dome could cost as much as $542 billion over the next 20 years.

In his remarks, Meink also discussed the Air Force's broader modernization efforts, saying the service was adding more autonomous systems and predicted it would look "radically different" by 2032. He foresaw one-way attack drones replacing artillery as the "primary killer." "We are increasing readiness against existing threats," he said.

Legal and International Context

The U.S. confirmation has raised questions about the legal framework governing weapons in space, particularly the Outer Space Treaty. Signed in 1967 by the U.S. and the Soviet Union, the treaty prohibits the placement of nuclear weapons or other weapons of mass destruction in orbit around Earth. The treaty also declared that outer space was a global commons that could be used for only peaceful purposes. However, the treaty never included an enforcement mechanism.

Andrea Harrington, co-director of the Institute of Air and Space Law and Associate Professor in the McGill Faculty of Law, told Global News that it is unlawful under the Outer Space Treaty to have "nuclear weapons or other weapons of mass destruction in orbit or stationed elsewhere in space," but that there is "no indication" that what Meink described involves such weapons. "So, there's no legal prohibition there," she explained.

Harrington also noted the significance of the U.S. openly acknowledging its space weapons, likening it to when the U.S. started referring to space as a "war-fighting domain," close to a decade ago. "That was a big rhetorical change but didn't have a significant practical change in terms of what capabilities were out there," she said.

International Reactions

China responded Tuesday to the U.S. announcement, urging the U.S. side to "stop expanding its military capabilities and preparing for war in outer space," according to a BBC report citing AFP.

The U.S. confirmation also comes amid broader diplomatic tensions over space weapons. In April 2024, the Biden administration announced that Russia was developing a space-based nuclear weapon that could loiter in space for long durations. Later that month, Russia vetoed a joint U.S.-Japanese resolution at the United Nations that would have called on all countries not to develop or deploy nuclear arms or other weapons of mass destruction in space, as banned under the 1967 treaty. The Russian delegation called the resolution hypocritical and a double standard and instead proposed a rival resolution to ban all weapons in space "for all time," which ultimately failed. Russia had argued that the United States and its allies opposed a ban on all weapons in outer space because they planned to deploy weapons there.

Expert Analysis

Andrea Harrington described a security dilemma in space: "Once weapons and capabilities start being developed, start being deployed, then other states feel they have to do the same thing to protect against those capabilities." She noted the significant role of space capabilities in modern life, including GPS, car navigation, Starlink, banking, and fuel payment systems.

A space threat fact sheet by the U.S. Space Force says China "develops and operates space and counterspace capabilities as part of a military modernization strategy" and that Russia views space as a "warfighting domain." A 2025 Space Threat Assessment report by the Center for Strategic and International Studies notes several potential threats and describes jamming and spoofing as a "worrisome trend." The report says the U.S. and its allies "remain concerned that Russia could decide to deploy such a weapon." It described space as "fair game" during conflict and warned that the normalization of space as a "military operational domain" could bring the same level of destruction to space as on Earth.