British invasion scares follow organised rivals

Why do invasion scares recur in British history?

They return when France or another nearby rival looks capable of mounting an invasion, and public rhetoric can make the perceived danger larger than the operational threat.

Invasion scares recur whenever France appears sufficiently organised, with Spain and Germany supplying other moments of anxiety. The press can amplify the public threat even when official concern is less dramatic. A later exchange recalls French incursions against Britain and neighbouring islands. The Norman Conquest also complicates modern national labels because the conquerors were Norse settlers who had become French lords.