The New York Times reported a number of details about what data Ukraine has stopped receiving from the US, what alternative sources of data it has, and how long it may last.

“Everything that came from the Defense Department has stopped,” said Valeriy Kondratiuk, the former head of HUR, one of Ukraine’s intelligence services. “This mostly concerns the exchange of imagery. This isn’t critical because European companies have their own satellites, but not all these are focused on military dislocation and movements, which is important.”

The CIA has a sizable presence in Ukraine, where it has been working alongside the Ukrainians to help with targeting.

Some of CIA officers have been deployed to Ukrainian bases, where they review lists of potential Russian targets that the Ukrainians are preparing to strike, comparing the information that the Ukrainians have with US intelligence to ensure that it is accurate.

The CIA has also helped the Ukrainians build at least three secret signals-intelligence collection bases, which the Ukrainians use to intercept Russian communications, reducing their dependence on the US for intelligence.

Some US officials said the hope was that any pause in intelligence sharing would be very short, with little practical impact. A senior Trump administration official said the initial plan was to pause this military and intelligence sharing for a week or two as part of the campaign to pressure Ukrainian President Volodymyr Zelenskyy.