Last August, the U.S. Navy ran a test of unmanned vessels off the coast of California. The goal was simple: prove that a fleet of autonomous boats could operate together in real conditions. Instead, the test revealed a weak spot. When a global outage hit Starlink, the Navy lost control of about two dozen vessels. The boats drifted in the water for nearly an hour while operators tried to reconnect.
Starlink is part of SpaceX, the space company led by Elon Musk. Its network uses thousands of low-Earth orbit satellites to deliver internet across the world. For the military, this system offers fast and flexible communication, especially in places where traditional networks fail. That promise has made Starlink a key part of several Pentagon programs.
But the outage showed a clear risk. If one system fails, operations can stall.
Pentagon Reliance Amidst Navy Test Failures
Internal Navy documents reviewed by Reuters show that this was not a one-off event. In several tests, operators struggled to keep stable connections with unmanned boats. These vessels rely on constant data links to receive commands and send back information. When the connection drops, control breaks down.
In another round of tests in April 2025, the Navy ran multiple unmanned systems at once. Starlink could not handle the high data load. The network slowed, and connections became unstable. A safety report noted that the system showed “limitations under multiple-vehicle load.” Other equipment also had issues, including radios and network tools, but Starlink played a central role in the failures.
Despite these problems, the Pentagon continues to rely on SpaceX. The company has built a strong position in both satellite communications and space launches. It runs nearly 10,000 satellites, giving it a scale that rivals cannot match. This network helps support missions ranging from drone control to missile tracking.
The Starlink Monopoly: Why SpaceX Dominates Low-Earth Orbit Despite Growing Risks
Competitors are trying to catch up. Amazon has invested billions in its own satellite system. It recently made a major deal to expand its capabilities. Still, SpaceX remains far ahead in low-Earth orbit communications.
The company also dominates rocket launches. The U.S. Space Force has turned to SpaceX several times after delays with other providers. A joint venture between Boeing and Lockheed Martin faced technical issues with its Vulcan rocket, forcing mission changes.
This growing dependence has raised concern in Washington. Some lawmakers warn that relying too much on a single company creates risk. If that company faces technical problems, policy disputes, or leadership decisions, the impact could spread across many programs.
There are real examples behind these concerns. In Ukraine, reports said that Starlink access was restricted during key operations, which affected military plans. In Taiwan, officials questioned whether SpaceX was meeting its obligations to provide service. SpaceX has denied wrongdoing in both cases, but the incidents added to the debate.
Experts say the trade-off is clear. Starlink offers wide coverage, low cost, and fast deployment. These benefits make it hard to replace. At the same time, no system is perfect. Outages, overload, or control issues can happen.
The Pentagon’s High-Stakes Balancing Act
Bryan Clark, a defense expert, put it in simple terms: the military accepts some risk because the system is so useful. The network’s reach and availability give it an edge that few alternatives can match.
Still, the Navy’s experience shows that backup systems matter. Redundancy can prevent a single failure from stopping an entire operation. As unmanned systems play a larger role in warfare, stable communication becomes even more critical.
The Starlink incidents do not erase its value. But they do highlight a key lesson. Even the most advanced systems have limits. And when a mission depends on one network, any disruption can have real consequences.
For the Pentagon, the challenge is balance. It must use the best tools available while avoiding overdependence on any single provider. The tests off California made that point clear.
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