In an environment where Europe’s adversaries – non-state actors and otherwise – are using drones extensively, High-Energy Lasers (HELs) are an easy, cheap, and efficient countermeasure. However, as a speed-of-light weapon, HELs’ ability to defeat hypersonic missiles also potentially thwarts attempted nuclear first-strikes and upsets Mutually Assured Destruction calculations. It can also frustrate intelligence, surveillance, and reconnaissance efforts by dazzling or blinding aerial and orbital optical sensors. However, there are technical challenges of thermal blooming, power management, and line-of-sight requirements. Europe has made some effort to centralise HEL production in the TALOS-TWO project. However, multiple ongoing HEL projects risk fragmented development. Europe should further centralise such efforts by improving communication and involving more stakeholders in the development process.