Anthropic is preparing a legal challenge against the U.S. Department of Defense (DOD), now Department of War (DoW), after the Pentagon designated the company a “supply chain risk to national security” in late Feb. The private company received an official letter from the department confirming the designation on March 4. It is the first time the U.S. government has ever publicly labelled an American company a supply chain risk.
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New trading tool for IBM bullsAnthropic Fights Back Against “Supply Chain Risk” Label
The DoW officially designated Anthropic a supply chain risk after failed negotiations to remove Claude’s safety guardrails for military use. On Thursday, CEO Dario Amodei confirmed Anthropic will legally challenge the decision, calling the label “legally unsound.”
Anthropic clarified that its restrictions are limited to two areas: fully autonomous weapons and mass domestic surveillance, and do not extend to military operational decision-making. Amodei described the designation as “narrow in scope,” adding that it “exists to protect the government rather than to punish a supplier”.
He also noted that the designation does not affect the company’s broader business relationships outside DoW contracts. A point confirmed by Microsoft (MSFT), which stated that its lawyers determined that the company’s products remain available to its customers outside the DoD contracts.
Once a DOD Partner, Anthropic Holds Firm Amid Fallout
Anthropic had signed ai-deal-collapses-over-use-limits">a $200 million contract with the DoD in July 2025, becoming the first AI lab to integrate its models into classified military networks. As talks stalled, rivals like OpenAI agreed to deploy its models in classified capacities, with the company’s CEO, Sam Altman, announcing the deal hours after Anthropic was blacklisted.
The Pentagon’s move later drew a broad pushback, with over 400 employees from Google (GOOGL), OpenAI, IBM (IBM), Slack, and Salesforce Ventures (CRM) signing an open letter urging the DOD to withdraw the designation, warning it sets a “dangerous precedent.” Despite the dispute, Anthropic said it has held discussions with the department about potential collaboration within its policy limits or ensuring a smooth transition if needed.
Is Anthropic on the Stock Market?
Anthropic remains a private company with no confirmed initial public offering (IPO) date, though it has hired law firm Wilson Sonsini to prepare for a potential offering in 2026, a timeline the ongoing Pentagon standoff could complicate. For anyone looking to invest in AI stocks related to Anthropic, TipRanks Stocks Comparison Center highlights Amazon (AMZN), GOOGL, and Nvidia (NVDA) as top picks.
