How long did Germany occupy British Islands during World War II ?
John H & Garret... I'm pretty sure the German Army occupied British Territory during WW II !!
The Occupation of the Channel Islands refers to the military occupation of the Channel Islands by Germany during World War II which lasted from 30 June 1940 until the Liberation on 9 May 1945.
These were the only portions of the British Isles to be invaded and occupied by German forces during the war.