The US Department of Justice disclosed in a legal briefing that Elon Musk's Grok artificial intelligence tool was used to coordinate military strikes against Iran, deploying over 2,000 munitions to distinct targets within 96 hours during an operation called Epic Fury. The revelation emerged as federal prosecutors defended xAI's data center operations against an environmental lawsuit, arguing that shutting down the facility would threaten national security and military innovation.

In sworn testimony, Pentagon AI chief Cameron Stanley stated that Grok is already integrated into Project Maven, the US military's AI-assisted targeting and intelligence analysis program. Stanley emphasized that the project's Maven Smart Systems (MSS) "enabled US forces to deploy over 2,000 munitions to 2,000 distinct targets within 96 hours during Operation Epic Fury," and praised "the greatly increased operational efficiency made possible by the Grok Gov Model".

Cameron Stanley

Why Did the Pentagon Turn to Grok?

The military's pivot to Grok represents a significant strategic shift. At the end of February 2026, the US government terminated its contracts with Anthropic, an AI safety company, after it refused to allow its Claude model to be used for fully automated military strikes or mass surveillance of Americans. The Pentagon then turned to competitors including Google, OpenAI, and xAI to continue its AI-driven military operations.

This transition highlights growing tensions within the AI industry over military applications. At Google, more than 600 employees demanded the company reject military contracts for classified operations, signaling internal resistance to weaponized AI development. The shift underscores how quickly military priorities can override corporate ethics policies when national security arguments are invoked.

How Is Grok Being Used in Military Operations?

• Targeting Coordination: Grok processes intelligence data to identify and coordinate strikes against military targets, enabling rapid deployment of munitions across multiple locations simultaneously.
• Operational Efficiency: The AI model accelerates decision-making cycles, allowing forces to deploy 2,000 munitions to 2,000 distinct targets in just 96 hours, a pace that would be difficult to achieve with traditional human-only planning.
• Mission-Critical Support: Pentagon officials confirmed that Grok is "equipped to support mission-critical operations" in top secret settings and is "currently capable of supporting national security applications".

"The greatly increased operational efficiency made possible by the Grok Gov Model," stated Cameron Stanley, Pentagon AI chief, in sworn testimony about the system's military deployment.

Cameron Stanley, Pentagon AI Chief

What Does This Mean for xAI's Data Center?

The government's disclosure directly supports xAI's defense against an environmental lawsuit filed by the NAACP, a civil rights organization. The NAACP accuses xAI of operating dozens of gas turbines without required permits and violating the Clean Air Act by polluting majority-Black neighborhoods. The US Department of Justice argued in its legal brief that the lawsuit "threatens American national, economic, and energy security by seeking to shut off the power supply for artificial intelligence innovation that supports the Department of War's military operations".

xAI has countered that the turbines are temporary and mobile, and therefore not subject to environmental regulation. By revealing Grok's military role, federal prosecutors are essentially arguing that environmental compliance could compromise national security, a claim that elevates the stakes of the lawsuit far beyond typical corporate litigation.

What's the Broader Context?

Elon Musk's relationship with the Trump administration has deepened significantly. In February 2026, Musk folded xAI into his space exploration company SpaceX, which completed the largest initial public offering in history on June 12, 2026. This integration positions Musk's AI technology at the intersection of commercial space operations and military applications, creating unprecedented leverage in government contracting.

The military's reliance on Grok also reflects broader challenges in AI development. The Pentagon's initial choice of Anthropic's Claude model was driven by the company's stated commitment to AI safety and refusal to enable fully autonomous weapons systems. However, when Anthropic held firm on its ethical boundaries, the military simply moved to competitors willing to provide less restricted versions of their AI tools. This pattern suggests that military demand for AI capabilities may ultimately override corporate safety commitments across the industry.

The disclosure raises significant questions about oversight, accountability, and the role of private AI companies in military operations. As AI becomes more central to warfare, the line between commercial innovation and military weaponization continues to blur, with national security arguments increasingly used to shield companies from environmental and ethical scrutiny.