The US Department of the Interior has paused the leases on all five offshore wind sites currently under construction in the US, citing national security risks revealed in a classified Department of Defense analysis. The move has been met with opposition from affected states and companies, who argue that the decision is lawless and erratic. The projects had already installed significant hardware in the water and on land, with some nearing completion. The reason for the pause is unclear, but it is speculated to be related to the Trump administration's history of opposition to offshore wind power.