The only part of the British Isles that can answer the question 'What
was it like to be invaded and occupied in World War 2?' are the holiday
islands of Jersey, Alderney, Guernsey and Sark. Left undefended in 1940,
they fell like ripe plums into German hands.
Thereafter they were turned into the most heavily defended parts of the
Nazi Atlantic Wall, with massive fortifications, gun emplacements and
underground storage tunnels. An army of foreign 'slave workers' was
brought in as well as the 27,000 German troops (known as the 'Canada
Division' as it was widely assumed that they would eventually become
POWs!)
Amid the routine of occupation came periods of danger and action from
raiding parties. After D-Day the German garrison was cut off and 'the
Hunger winter' resulted. In May 1945 the Germans surrendered amid much
rejoicing.