The U.S. Defense Advanced Research Projects Agency (DARPA) is spending millions on research to use artificial intelligence (AI) in strategic battlefield decisions. The military research agency is funding a project — called Strategic Chaos Engine for Planning, Tactics, Experimentation and Resiliency ( SCEPTER ) — to develop AI technology that will cut through the fog of war. The agency is betting that more-advanced AI models will simplify the complexities of modern warfare, pick out key details from a background of irrelevant information, and ultimately speed up real-time combat decisions. "A tool to help fill in missing information is useful in...