Mark Warner, the senior Democrat on the Senate Intelligence Committee, said intelligence cooperation between the United States and Ukraine had been strengthened again and that intelligence sharing had returned to its previous levels.
While declining to provide details, Warner said Ukraine had carried out attacks reaching deep inside Russian territory with long-range unmanned aerial vehicles and missiles, adding that this had strengthened Kyiv’s position.
Intelligence sharing was temporarily suspended in February 2025
The U.S. administration temporarily suspended intelligence sharing with Kyiv after a tense meeting in the Oval Office in February 2025 between Ukrainian President Volodymyr Zelenskyy and senior U.S. officials.
Texas Senator John Cornyn and Virginia Senator Tim Kaine also said the cooperation had expanded at a critical time. Cornyn said developments were moving in that direction and argued that Ukraine was changing the course of the war.
Kaine said he had seen greater trust in communication between the sides during his visits to Ukraine.
U.S. intelligence affected operations
George Barros of the Institute for the Study of War said U.S. intelligence had played an important role in Ukraine’s recent successes. Barros said the intelligence support approved by U.S. President Donald Trump for attacks on Russia’s energy infrastructure had made the operations more effective and served a broader strategy aimed at pressuring Moscow to negotiate.
Barros said U.S. early-warning systems had also helped Ukraine defend itself against Russian missile attacks throughout the war.