Our Mission
S4S, with its Allies and partners, commands combat forces in space superiority operations to protect and defend USSPACECOM’s Area of Responsibility and to deliver global space-enabled effects to the Joint Force.


S4S mission - Protect, Defend, Deliver, Connect

S4S Featured Stories
A uniformed man gestures as he speaks seated at a table on a spotlit stage with an affixed microphone

S4S commander at Space Symposium: “Space as a warfighting domain has been established”
Space Force general speaks at conference

USSF Lt. Gen. Dennis Bythewood speaks at the Mitchell Institute for Aerospace Studies’ Spacepower Security Forum
Graphic showing quote from Space Force General

LTG Bythewood Defense One - State of Defense 2026
man speaks to crowd

S4S Commander: Space is ‘First Through the Door’ in Joint Operations
Two men pose for a photo

Lt. Gen. Bythewood interviewed at Mitchell Institute's Schriever Spacepower Series
S4S leaders speak at 2026 State of Vandenberg event

S4S leaders speak at 2026 State of Vandenberg event
Soldier poses for photo

S4S captain collaborates with international partners during Exercise SPARTEX 2026
Military leaders and partners post for a group photo.

CSpOC hosts Electronic Warfare, On-Orbit Integration Working Group
S4S Current News
U.S. Space Force Lt. Gen. Dennis Bythewood, U.S. Space Forces–Space commander and Combined Joint Force Space Component commander, speaks during the “Space Ops Theater Perspective” panel at the Space Symposium in Colorado Springs, Colo., April 15, 2026. On the panel, Bythewood emphasized that operating in a vast, increasingly contested space domain requires seamless integration with global Allies to counter growing threats and maintain space superiority for the Joint Force. (U.S. Space Force photo by Capt. Cameron Silver)
S4S commander at Space Symposium: “Space as a warfighting domain has been established”
By Capt. Cameron Silver | April 21, 2026
U.S. Space Force Lt. Gen. Dennis Bythewood, commander of U.S. Space Forces–Space (S4S) and the Combined Joint Force Space Component commander for U.S. Space Command, provided a glimpse into the state of space warfare and...
U.S. Space Force Lt. Gen. Dennis Bythewood, U.S. Space Forces–Space (S4S) commander and Combined Joint Force Space Component commander, speaks during the “Operating a Warfighting Service” panel at the Mitchell Institute for Aerospace Studies’ Spacepower Security Forum in Arlington, Va., April 1, 2026. During the panel, Bythewood emphasized that Guardians are globally integrated to deliver active combat support and critical space effects for the Joint Force.
Space Force Delivering in Combat Operations Today, S4S Commander Says 
By Stacie N. Shafran  | April 14, 2026
U.S. space capabilities underpin the modern warfighter. As the Space Force component to U.S. Space Command, we are delivering combat-relevant space capabilities in military operations today, said U.S. Space Force Lt. Gen...
An infographic features U.S. Space Force Lt. Gen. Dennis O. Bythewood, commander of U.S. Space Forces - Space, highlighting his remarks from the Defense One State of Defense 2026 event at Vandenberg Space Force Base, California, March 25, 2026. Bythewood emphasized the necessity of conducting dynamic space operations and moving to positions of advantage to maintain a tactical edge in the space domain. (U.S. Space Force graphic by Maj. Julian Labit)
S4S commander highlights shift to space combat mindset at State of Defense 2026
By Maj Julian Labit | April 14, 2026
The commander of U.S. Space Forces - Space (S4S) recently joined a panel of experts to discuss the evolution of the space domain during the State of Defense 2026 virtual conference...
U.S. Space Force Lt. Gen. Dennis O. Bythewood, USSF, commander of U.S. Space Forces-Space and Combined Joint Force Space Component commander, led an all-call with local command members and staff to underscore the critical role space plays in modern warfare at Vandenberg Space Force Base, California, March 27, 2026. (U.S. Space Force photo by David Dozoretz)
S4S Commander: Space is ‘First Through the Door’ in Joint Operations
By Stacie N. Shafran | April 2, 2026
U.S. Space Force Lt. Gen. Dennis Bythewood, commander of U.S. Space Forces–Space (S4S), led an all-call with local command members and staff March 27, 2026, underscoring the critical role space plays in modern warfare...
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U.S. Space Command News
U.S. Space Force Lt. Gen. Dennis Bythewood, U.S. Space Forces–Space commander and Combined Joint Force Space Component commander, speaks during the “Space Ops Theater Perspective” panel at the Space Symposium in Colorado Springs, Colo., April 15, 2026. On the panel, Bythewood emphasized that operating in a vast, increasingly contested space domain requires seamless integration with global Allies to counter growing threats and maintain space superiority for the Joint Force. (U.S. Space Force photo by Capt. Cameron Silver)
S4S commander at Space Symposium: “Space as a warfighting domain has been established”
By Capt. Cameron Silver | April 21, 2026
U.S. Space Force Lt. Gen. Dennis Bythewood, commander of U.S. Space Forces–Space (S4S) and the Combined Joint Force Space Component commander for U.S. Space Command, provided a glimpse into the state of space warfare and...
(Center) U.S. Space Force Chief Master Sgt. Jacob Simmons, command senior enlisted leader for U.S. Space Command, poses for a photo with Royal Canadian Air Force Chief Warrant Officer Jamie Marshall, 3 Canadian Space Division CWO, and Chief Master Sgt. John Bentivegna, the highest enlisted leader of the U.S. Space Force, at the 41st Space Symposium in Colorado Springs, Colorado, April 14, 2026. Simmons and Bentivegna participated in a “Perspectives on Partnership” panel at the symposium, highlighting the importance of partnership, innovation and industry collaboration to build a skilled, resilient space workforce and strengthen multinational operations.
USSPACECOM highlights ‘Year of Integration’ at the 41st Space Symposium
By | April 17, 2026
Through panel discussions, fireside chats, and international engagements at the 41st Space Symposium from April 13-16, 2026, U.S. Space Command leaders and staff demonstrated that the command’s “Year of Integration,” is not...
Lt. Gen. Richard Zellmann, U.S. Space Command deputy commander, speaks with Maj. Gen. Timo Herranen, Finnish Air and Space Force commander, at the 41st annual Space Symposium in Colorado Springs, Colorado, April 15, 2026. The leaders discussed the vital role that space plays in modern military activities, including satellite communications and battlespace awareness, and explored opportunities for potential collaboration in the future. USSPACECOM, working with allies and partners, plans, executes, and integrates military spacepower into multi-domain global operations in order to deter aggression, defend national interests, and when necessary, defeat threats.
USSPACECOM leaders meet with international partners at the 41st Space Symposium
By | April 17, 2026
Through panel discussions, fireside chats, and international engagements at the 41st Space Symposium from April 13-16, 2026, U.S. Space Command leaders and staff demonstrated that the command’s “Year of Integration,” is not...
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