The technology requires gigantic capital investments—up to $800 billion alone in Europe over the next decade—to unlock giant efficiencies. Cloud computing lowers IT costs and provides additional security for storing critical data. Yet, in part because of the enormous stakes involved, Europe and America risk engaging in a counterproductive, destructive cloud war. US companies dominate cloud computing and are eager to serve the European market. As transatlantic ties frazzle, European concerns over data sovereignty, security, and vendor lock-in are growing. A CEPA Bandwidth series examines the conflicts and attempts to chart a win-win, constructive path forward.