Ukraine boasts an unusually large number of internet-service providers—by one reckoning the country has the world’s fourth-least-concentrated internet market. This means the network has few choke points, so is hard to disable. In this, indeed, it fulfils one objective of the internet’s ancestor from the 1970s, arpanet, which was intended to be similarly resilient to attack. Repair crews, for their part, are toiling heroically, including, when possible and more efficient, by fixing equipment owned by competitors. The number of devices connected to Ukraine’s internet has fallen by nearly a quarter since Russia’s onslaught began. Is Ukraine Internet communication at a breaking Edge?