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 to the US at the earliest suitable date in November to complete final steps and make a deal with President Trump,” he said.

It’s unclear just yet what terms the U.S. and Ukrainians agreed to on Monday. (The Washington-based Institute for the Study of War rounded up various reports from European and U.S. press with a variety of possible sugge