President Trump announced on October 7, 2026 the start of construction on the Arsenal 2 shipyard at Sparrows Point, Maryland, to build components for Navy Virginia-class attack submarines. Anduril is investing $3.7 billion and the U.S. Navy is adding $2.9 billion. Reporting since has established the yard will be roughly 2 million square feet under one roof, and that Anduril has already spent about $160 million and is building torpedo tubes in California ahead of Arsenal 2. The discussion has settled on the scale of the private commitment relative to the public one, and on what the yard's output will mean for the submarine industrial base.