At Space Symposium, S4S commander says space is an established warfighting domain

U.S. Space Force Lt. Gen. Dennis Bythewood used a media panel at the Space Foundation’s 41st annual Space Symposium in Colorado Springs on April 15, 2026, to outline how U.S. Space Forces–Space is tackling an expanding threat environment while accelerating multinational integration across the domain.

Sharing the stage with USSF Brig. Gen. Brian Denaro, commander of U.S. Space Forces–Indo-Pacific; USSF Brig. Gen. Robert Schreiner, commander of U.S Space Forces–North; and French Air and Space Force Lt. Gen. Guillaume Thomas, deputy commander of NATO Allied Air Command, the discussion centered on the “Space Ops Theater Perspective” and approaches to regional challenges and opportunities.

Bythewood emphasized the scale of his command’s battlespace and the global footprint of combat units and joint centers that monitor both terrestrial and extraterrestrial activity. “Our AOR starts at 100 kilometers and… moves out to infinity,” Bythewood said. “So the largest geographic AOR – not in the world, but in the galaxy.”

He underscored the role of Allies, partners, and industry in sustaining persistent awareness and operations. Calling this collaboration “fundamental to how we do business and understand what’s going on inside the space environment,” he pointed to the Joint Commercial Operations cell that enables shared, unclassified space domain awareness across time zones: “when we look at how to surveil all of the activity that’s going on in space and making sure that we can execute the missions that we’ve got… partners from around the globe allow us to do 24/7 operations and share an unclassified space domain awareness picture.”

Coalition integration under Multinational Force–Operation Olympic Defender remains central to this approach, bringing together the combined capabilities of the U.S., Australia, Canada, France, Germany, New Zealand, and the U.K. “[MNF-OOD] brings together all the capabilities of those coalition partners to execute our missions around the world,” Bythewood said. “One [mission] is the space superiority mission that allows us to make sure that we can execute space operations at the time and place of our choosing, and then the other one is denying that same capability to an adversary.”

That framework has yielded operational firsts. In late 2025, the U.S. and the U.K. conducted a first-of-its-kind bilateral rendezvous and proximity operation in orbit, followed soon after by a similar U.S.–France mission, expanding coalition proficiency in maneuver-centric activities that can support inspection, refueling, repair, or kinetic engagement.

The push aligns with U.S. Space Command’s focus on 2026 as the “Year of Integration,” aiming to forge a synchronized, agile, combat-ready space enterprise that leverages capabilities across domains. Bythewood highlighted the operational interplay across theaters and echelons: “the teamwork that has to happen in order to make sure that we’re able to support those terrestrial operations, and that those terrestrial warfighters can support the on-orbit operations,” he said. “We’re bringing each of those individual space capabilities together to execute [USSPACECOM commander] General Whiting’s mission.”

While conducting round-the-clock operations, Space Forces–Space is sustaining a readiness posture tailored to a rapidly evolving threat landscape. “The threat regime has continued to grow for the last decades, whether it’s jammers coming from a base on the planet, anti-satellite weapons that would take out our capabilities on orbit, orbital satellites that are holding our assets at risk, and all of the cyber domain things that would hit our terrestrial-based infrastructure,” he said.

Training has been recalibrated to reflect that contested reality. The USSF has been “training [Guardians] to execute within a combat arms kind of viewpoint. Where they’re always under threat… they have to adapt and identify how to move forward and execute their job,” he said. “The environment gets tougher every day.”

Space effects have figured into recent combat operations, including Operation MIDNIGHT HAMMER, Operation ABSOLUTE RESOLVE, and Operation EPIC FURY, with U.S. Air Force Gen. Dan Caine, the chairman of the Joint Chiefs of Staff, identifying U.S. Space Command as one of the “first movers” in the operation. “Space as a warfighting domain has been established,” Bythewood said. “And the United States and its Allies and partners are working hard to make sure that we can contest that domain on any day, in any circumstance.”