US Urged to Prioritize VLEO for Space Superiority Amid Rising Nuclear Threats

The United States is facing unprecedented challenges in space security as China and Russia continue to develop sophisticated weapons capable of disrupting or destroying American satellites. In response, the U.S. government has significantly increased funding for the Space Force, with its fiscal 2027 budget request reaching $71.1 billion—a staggering 124% increase from the previous year. This surge in investment reflects a growing recognition that space is no longer a sanctuary and requires robust defense mechanisms.

The Space Force's strategy has focused on deploying hundreds of new satellites to Low Earth Orbit (LEO) to create a more distributed and resilient network. However, this approach does not adequately address one of the most significant threats: the potential for a nuclear detonation in space that could render LEO unusable for up to a year. This threat is no longer theoretical; Russia has already tested satellites capable of deploying nuclear weapons, and General Stephen Whiting, commander of U.S. Space Command, recently described such an event as the "single greatest threat" to America's space architecture.

A high-altitude nuclear detonation would inject harmful radiation into Earth’s magnetic field, creating artificial radiation belts that could disable most commercial satellites within days or weeks. This scenario would effectively halt operations in LEO until these radiation levels dissipate over a period of up to 300 days. The U.S. has been working on developing "Tactically Responsive Space" (TacRS) capabilities to rapidly manufacture and launch replacement satellites, but this approach is rendered ineffective if the new satellites encounter the same hazardous radiation environment.

To counter this threat, experts are advocating for a shift in focus towards Very Low Earth Orbit (VLEO), which generally refers to orbits below 350 kilometers. At these lower altitudes, the denser atmosphere naturally shields satellites from harmful radiation, making VLEO a more resilient and survivable orbit even after a nuclear detonation. Satellites in VLEO would be less vulnerable to immediate destruction by a nuclear blast and could continue operating without significant downtime.

Despite the clear benefits of VLEO, the U.S. government has not prioritized this area as much as it should. Investments in research and development for VLEO have been relatively modest compared to overall space expenditures. In contrast, China is actively pursuing VLEO technology with ambitious plans to launch a 300-satellite constellation by 2030. This strategic move could give China an asymmetric advantage if the U.S. loses control of LEO during a conflict.

The growing disparity in investment between the U.S. and China highlights the urgency for the Space Force and Intelligence Community to reassess their priorities. While the current strategy emphasizes rapid satellite deployment and on-orbit defense mechanisms, it falls short when confronted with the existential threat posed by nuclear weapons in space. By prioritizing VLEO infrastructure, the United States can enhance its resilience against such threats and maintain a strategic edge in the evolving domain of space warfare.

As the global competition for space dominance intensifies, the U.S. must adapt its strategies to address emerging risks comprehensively. The time is now for policymakers to consider VLEO as an essential component of future space security initiatives, ensuring that American assets remain protected and operational even under extreme conditions.