The Department of Defense has essentially frozen permitting for new wind installations over the last year, preventing more than 155 projects from moving forward.

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Cattle graze near a wind farm along the historic Route 66 on June 6, 2026, in Adrian, Texas. (Al Drago/Getty Images)

A coalition of 18 states and Washington, D.C., has moved to join an industry lawsuit challenging the Department of Defense’s freeze on onshore wind projects in America.

It’s the latest in a nearly yearlong saga during which the Trump administration has obstructed more than 155 land-based wind projects across the country, according to data from the American Clean Power Association.