Comment by defrost

Like the USofA, the British interned "enemy nationals" - this policy extended across the Commonwealth including Canada, Australia, India, and elsewhere.

  During the Second World War, the British government interned several different groups of people, including German, Austrian and Italian nationals.

  However, following Nazi Germany’s military successes in France, Belgium and the Netherlands in the spring and summer of 1940, there was increasing concern that ‘enemy aliens’ in Britain would form a ‘ fifth column ’.

  These concerns were amplified by the British press. As a result of this growing fear, the British government interned approximately 27,000 ‘enemy aliens’, including those assessed as low risk, supposedly in the interests of national security. Those interned were predominantly men between the ages of 16 and 60, but 4000 women and children were also interned.

~ https://www.theholocaustexplained.org/resistance-responses-c...

In Australia: https://www.naa.gov.au/explore-collection/immigration-and-ci...

In India: https://en.wikipedia.org/wiki/Seven_Years_in_Tibet

Technically Heinrich Harrer was not a civilian as he held the "honorary" rank of a Nazi sergeant in the SS, kind of an early PR stunt rank given due to his status as a world famous mountaineer .. still it points to the internment of Germans and Austrians in India and references an interesting book