When a satellite is hit, the fallout can ripple across the battlefield. DARPA’s latest request for information, released on 12 June 2026, is a pre‑emptive strike against that risk.

Issued by DARPA’s Strategic Technology Office, the solicitation asks industry to propose concepts that can restore critical space services within hours or weeks after a satellite is damaged or destroyed. It invites ideas in modular spacecraft, software‑defined payloads, rapid manufacturing, on‑orbit assembly, and distributed sensor networks.

The RFI signals a departure from the old model, in which the U.S. counted on a handful of high‑quality satellites that were presumed safe from hostile action. That assumption is now seen as untenable. The RFI’s goal is blunt: reestablish service on timelines measured in hours to weeks after satellites are degraded by anti‑satellite weapons, cyberattacks, orbital debris or other disruptions.

The impetus for the RFI is documented in a decade‑long record of counter‑space capabilities fielded by China and Russia. Both nations have deployed direct‑ascent anti‑satellite missiles, co‑orbital inspectors, ground‑based jammers, laser dazzlers, and offensive cyber tools. The United Kingdom has publicly identified Russian satellites that stalk British military spacecraft and that use ground‑based jammers against UK satellites on a weekly basis. In a BBC interview, Maj. Gen. Paul Tedman, head of UK Space Command, said Russian payloads fly close to allied satellites to collect information.

U.S. forces rely on space for communications, intelligence, missile warning, and navigation, positioning and timing (PNT) signals that guide everything from infantry radios to precision munitions. Taking down U.S. satellites would therefore “peel apart the joint force,” the RFI notes.

DARPA is not asking for spare satellites in a warehouse. The RFI envisions a full reconstitution architecture: spacecraft built from modular blocks that can be swapped or reconfigured, software‑defined payloads that can take on missions outside their original specification, manufacturing lines that can spin up replacements quickly, and on‑orbit assembly that lets operators stitch together capability from parts already in space.

A distributed sensor constellation is also a key element. A network of inexpensive, networked satellites is harder to disable than a single large bus carrying a unique sensor. Losing ten of a hundred satellites would degrade a mission only partially, whereas losing the sole satellite in a constellation would end the mission.

The RFI plugs into a broader Space Force effort that has been building since 2021. The most visible demonstration was Victus Nox, a tactically responsive launch exercise flown by Firefly Aerospace and Millennium Space Systems in September 2023. Firefly’s Alpha rocket lifted off from Vandenberg Space Force Base just 27 hours after the Space Force gave the launch order, beating the previous record of 21 days. The mission showed the nation’s ability to rapidly respond to adversary threats and deliver capabilities to warfighters.

The Space Force has also established the Commercial Augmentation Space Reserve (CASR), which uses pre‑arranged agreements with commercial satellite operators to provide surge capacity during a crisis. CASR acknowledges that the commercial sector now operates more spacecraft than the military does and that wartime resilience requires using those assets.

The hard problem DARPA is asking about is what goes on the rocket on short notice. A satellite bus that takes three years to build is not a reconstitution asset, no matter how fast it can be launched. That is why the agency is asking about modular spacecraft and software‑defined payloads. If a communications satellite can be reprogrammed in orbit to fill a missile‑warning gap, the constellation becomes more than the sum of its parts.

The RFI also signals that the government cannot do this alone. The launch cadence required for genuine reconstitution depends on commercial providers. Companies that produce small satellites at volume for commercial constellations have the production lines the Pentagon would need to draw on. The Space Force has already been working to bring more launch providers into the national security fold, including Blue Origin, which received nearly $18 million for New Glenn integration studies.

There is a strategic argument beneath the engineering one. If an adversary believes that destroying a U.S. satellite buys a meaningful military advantage that lasts for months, the temptation to attack rises. If the adversary instead believes the U.S. can replace the capability within days, the calculus shifts. Reconstitution is partly about resilience and partly about taking the prize off the table.

What follows the RFI—whether it leads to a formal program, a series of demonstrations, or a quiet handoff to the Space Force—will indicate how seriously the Pentagon treats the risk that the next conflict starts, or ends, in orbit. The current situation is that DARPA has opened the RFI, and industry is invited to submit concepts. No formal program or funding decision has yet been announced.