Five Eyes can't fully replace US intelligence in Ukraine

A former chief of the US Cyber Command has raised concerns about the impact of the US pausing intelligence sharing with Ukraine. This pause was implemented earlier in March 2025 by the Trump administration amid growing tensions between the US and Ukraine. National Security Adviser Mike Waltz indicated that the US was taking a step back to review its relationship with Ukraine. Although the pause has now been lifted, General Paul Nakasone expressed worries that the Five Eyes alliance, which includes Australia, New Zealand, the UK, and Canada, cannot fully replace the intelligence capabilities of the US. He mentioned that while these allies are capable, they may not provide the same level of cybersecurity information. The pause in intelligence sharing follows a period where the US also halted its cyber-offensive operations against Russia. Nakasone described the intelligence shared by the US as a "crown jewel," highlighting its importance to international security. This situation could hurt the trust within the Five Eyes alliance, which has historically relied on cooperation among its members. Some analysts believe that the recent actions may damage relationships, especially given the commitment from the UK and Canada to support Ukraine.