Pentagon budget affirms Space Force role tracking moving targets from orbit

WASHINGTON — The Pentagon’s fiscal 2027 budget request is the clearest signal yet that the U.S. Space Force is moving into a new role: tracking moving targets from orbit, a mission long handled by specialized aircraft.

The proposal allocates more than $8 billion for so-called moving target indicator, or MTI, systems — satellites designed to follow objects on the ground and in the air in near real time. The effort reflects a broader shift in military planning as traditional surveillance aircraft face growing risks in contested environments.

“For decades, the military has relied heavily on terrestrial and airborne sensors to track moving targets in the air,” the Space Systems Command said in an April 27 statement. “However, deploying these traditional sensing aircraft into highly contested environments is becoming increasingly unviable.”

The MTI mission is split into two parts. Ground moving target indication, or GMTI, focuses on tracking vehicles and formations such as tanks, trucks and mobile missile launchers. Air moving target indication, or AMTI, aims to follow aircraft and cruise missiles from space.

GMTI is further along. The Space Force is working with the National Reconnaissance Office to develop a proliferated constellation in low Earth orbit, drawing on the intelligence agency’s experience building classified surveillance satellites. The mission, previously carried out by the now-retired JSTARS aircraft, is considered more mature from a technical standpoint.

AMTI presents a harder problem. Tracking airborne targets from orbit requires distinguishing fast-moving objects from background clutter while looking down from hundreds of miles above Earth. Still, officials say the concept has moved beyond theory.

Air Force Secretary Troy Meink said earlier this month at the Space Symposium that space-based AMTI is “technically feasible and grounded in demonstrated technologies,” shifting the challenge toward affordability and industrial competition.

Meink said the Space Force already awarded “base contracts” to nine vendors for space-based air moving target indicator capabilities through competitive Other Transaction Agreements. These awards are meant to establish the first increment of the AMTI network under a “system-of-systems” approach, with multiple companies contributing. More contracts are expected, but the Space Force is not releasing the names of the vendors “to protect sensitive operational capabilities,” a spokesperson said.

The Space Force is organizing around the AMTI mission. A newly established Portfolio Acquisition Executive for Space-Based Sensing and Targeting will oversee development of an AMTI network, including both sensor satellites and a communications backbone to move data across the force.

Col. Ryan Frazier, who leads the office, said the goal is to deliver “a resilient sensing layer” that can operate in denied environments where traditional systems struggle. He said the service is pursuing a multi-vendor approach and has already awarded base contracts to nine companies through Other Transaction Agreements, though it is not disclosing their identities.

The architecture is designed as a “system of systems,” with multiple providers contributing to an initial network and additional contracts expected over time. Frazier said the approach is intended to build a broader industrial base, including commercial space firms.

Billions in the 2027 budget

The budget seeks $1.1 billion in fiscal 2027 to continue procuring a GMTI constellation, with total projected spending of $2.6 billion over five years. Research and development funding for GMTI adds another $235 million in 2027 and $3.1 billion over five years.

For AMTI, the Pentagon is requesting $7.1 billion through a separate reconciliation package to expand a high-band radar system designed to detect and track airborne targets. Budget documents say the funding would support regional coverage and move toward a global capability. An additional $140 million is set aside to develop complementary sensing approaches, including lower-frequency systems for wide-area search.

Some of that work is already under way, supported by fiscal 2026 funding tied to the Golden Dome missile-defense initiative, which would rely on AMTI to track incoming threats.

The Space Force’s recently released “Objective Force 2040” report, which outlines the service’s long-term vision, identifies moving target indication as an emerging mission and a potential cornerstone of future operations.

The document says the military will need “the ability to identify, track and engage numerous moving targets simultaneously,” calling space-based MTI “transformational” for providing persistent, global sensing and access into contested areas.

The budget request suggests that vision is beginning to move from concept to program — though questions remain about cost, technical performance and whether satellites can match the responsiveness of the aircraft they are meant to replace.