Executive Summary

As confidence in US intelligence leadership under President Trump falters, key allies are reassessing the Five Eyes alliance. Recent US actions, such as suspending intelligence sharing with Ukraine, floating Canadian annexation, and the recent Signal blunders, have eroded trust and prompted the United Kingdom, Canada, Australia, and New Zealand to explore a new “Four Eyes” alternative. Discussions and advocacy, particularly in the UK, now focus on creating a more autonomous intelligence-sharing framework. With this aim, the goal is to protect shared security interests and avoid potential US interference. While a Four Eyes alliance could strengthen closer collaboration and autonomy among like-minded partners, it would also likely struggle to match the vast resources and global reach currently provided by the US within the existing Five Eyes network.