U.S. and Chinese security experts proposed joint principles to prevent artificial intelligence from independently deciding on attacks on nuclear command systems or the use of nuclear weapons. A Brookings Institution and Fudan University report urged expanding the human-control principle used for nuclear weapons to broader military AI. It called for humans alone to decide on cyberattacks targeting NC3 or critical infrastructure and warned that fast, unpredictable AI could escalate crises. The proposal also includes a military AI hotline and a shared definition of human control.