The D Brief: US, Ukraine in talks; Counter-drone war, at scale?; China’s anti-AI playbook; Spies see opportunity in feds’ fear; And a bit more.

Developing: United States and Ukrainian officials have made some progress in talks to wind down Russia’s Ukraine invasion, Kyiv’s national security advisor announced Tuesday morning. “Our delegations reached a common understanding on the core terms of the agreement discussed in Geneva,” said Rustem Umerov, writing on social media. “We now count on the support of our European partners” and “look forward to organizing a visit of Ukraine’s President t