WASHINGTON — The Pentagon said Friday that it has reached deals with seven tech companies to use their artificial intelligence in its classified computer networks, allowing the military to tap into AI-powered capabilities to help it fight wars. Google, Microsoft, Amazon Web Services, Nvidia, OpenAI, Reflection and SpaceX will provide their resources to help “augment warfighter decision-making in complex operational environments,” the Defense Department said.The Defense Department has been rapidly accelerating its use of AI in recent years. The technology can help the military reduce the time it takes to identify and strike targets on the battlefield, while aiding in...