The Isle of Man will be at war this weekend!
But don't panic, it's just a special 1940s event which has been organised on the steam railway.
The station at Douglas will be decked out as a military base, with a Home Guard outpost, and anyone wishing to get on board the train will need their ID travel papers.
Richard Little, who has been setting it all up, says it's a chance to travel back in time:
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