In the 2026 AI power struggle, a rare "all-star level" show of support is unfolding. On March 10, local time, tech giant Microsoft formally submitted court documents, publicly supporting competitor Anthropic in its legal battle against being labeled a "supply chain risk" by the U.S. Department of Defense. This move marks that, facing the arbitrary intervention of administrative power, the Silicon Valley AI camp has for the first time set aside its differences and formed a united front.
Microsoft's Argument: The Ban Is Too Hasty, Contractors "Can't Wait"
In the submitted brief, Microsoft's position was clear: it called on the court to issue an immediate temporary injunction to suspend the implementation of the Pentagon's ban.
Microsoft sharply pointed out that the Pentagon's decision-making process was extremely opaque and lacked legal basis. Most controversially, although the Department of Defense left itself a six-month period for elimination, it required thousands of defense contractors to rebuild their systems relying on Anthropic within a very short time. This "only allowing officials to light fires" behavior would impose high reconstruction costs and potential business disruptions on suppliers.
Historic Solidarity: OpenAI and Google Engineers Step Forward Collectively
What shocked the public even more was that this campaign for rights had evolved into a collective plea from the entire AI industry. In addition to Microsoft's official endorsement, 37 top researchers and engineers from OpenAI and Google have also submitted court briefs, jointly supporting Anthropic company.
These former rivals who once fought fiercely in algorithms and market share now reached a consensus on "procedural justice." They are not only worried about Anthropic's experience, but also that such an unannounced administrative classification could become a sword of Damocles hanging over all AI companies.
Looking Back at the Incident: The Trump Administration's "Risk Designation" Controversy
The trigger for this conflict was a designation made by the Trump administration on March 9, which placed Anthropic on the "supply chain risk" list. This designation almost cut off the AI newcomer's communication with all government-related businesses. Anthropic then filed a lawsuit against the Department of Defense and related federal agencies, accusing the classification of being completely unfounded.
The Ultimate Battle Between Technology and Power
When Microsoft stood up to speak for its competitor, this went beyond pure commercial competition. As Boundary News noted, the outcome of this lawsuit will directly define the boundaries of future cooperation between AI companies and government agencies. At this pivotal moment in 2026, when AI profoundly reshapes geopolitics, tech giants are trying to tell the Pentagon through legal weapons: innovation's security should not be based on arbitrary decisions.
