 Artificial intelligence technology and particularly applications of machine learning are becoming commonplace in our daily lives. We experience them in everything from our phones to our cars, our online interactions with customer service and even our refrigerators are starting to utilize machine learning to improve our experiences. Using machine learning algorithms to perceive their environments, future versions of intelligent agents may be able to act independently to achieve their goals no matter what they may be. Some of these future systems will work together with humans to obtain the best results, using computational cognitive modeling techniques to help operators accomplish their goals. The military, including the Navy, plan to deploy AI-enabled systems for missile defense, radar applications, cybersecurity, and to control autonomous, ground, aerial, and underwater vehicles. One of the research and development sites for these defense applications of AI is the U.S. Naval Research Laboratory, or NRL. NRL is using machine learning techniques to solve complex, data-rich problems that would be time and cost-prohibited for human operators and warfighters to solve. AI R&D projects at NRL also exist in intelligent agents, cognitive science, and distributed autonomous systems. These projects focus on highly diverse application domains, ranging from simulated air combat to biology. AI is helping scientists and engineers create many innovations, for example, using machine learning techniques to select radio frequencies and block enemy interception of secure communications. As AI continues to find ways to help people live their lives better, the scientists at the Naval Research Laboratory are continuing to find innovative ways to help keep Americans and warfighters safe as we enter into a better future.