At a U.S. military base in central California, four-seater all-terrain vehicles roam hillside trails. This is a training exercise, but not for the people in the vehicles: It’s an effort to train AI models to enter conflict zones. The autonomous military ATVs are operated by Scout AI, a startup founded in 2024 by Colby Adcock and Collin Otis that calls itself a “frontier lab for defense.” The company said on Wednesday that it has raised $100 million in a Series A round led by Align Ventures and D...