After weeks of drawn-out congressional debate over how much the United States should spend on conflicts abroad, President Joe Biden signed a 95 billion aid package into law last week. The bill will send a significant quantity of supplies to Ukraine and Israel, while also supporting Taiwan with submarine technology to aid its defenses against China. It's also sparked renewed calls for stronger crackdowns on Iranian-produced drones. James O'Donnell, our AI reporter, spoke to Andrew Metrick, a fellow with the defense program at the Center for a New American Security, a think tank, to discuss how the spending bill provides a window into US strategies around four key defense technologies with the power to reshape how today's major conflicts are being fought. This piece is part of MIT Technology Review Explains: a series delving into the complex, messy world of technology to help you understand what's coming next.