As far as military strategies go, never has there been a more cunning and clever trick than what took place in Paris towards the end of WW1. The French built a ‘second Paris’, equipped with a fake Champs-Élysées and Gare du Nord, hoping to fool German bombers, and this secret has only recently been revealed.

As the French capital gears up to commemorate the 93rd anniversary of the Armistice, an unbelievable secret about military strategy in Paris has just been revealed, thanks to archives unearthed by Le Figaro newspaper.

Believe it or not, French military planners believed that German pilots could be fooled into destroying a pretend Paris, rather than the real one, and so, they set about building a life-size replica.

This dummy city was positioned on the northern outskirts of Paris in order to bring the danger as far away from civilians and the city’s infrastructure as possible.

The designers were really invested in making the dummy city feel as real as possible, even from above, and so, they hired an electrical engineer named Fernand Jacopozzi to illuminate each street with electric lights.

The idea was to lure the Germans into thinking that these electric lights meant population and that they should drop their bombs there.

Among the replica buildings was a copy of the Gare du Nord train station, the Arc de Triomphe and the Paris Opera, as well as industrial suburbs like Saint-Denis and Aubervilliers, which would have been a target for bombers.

But the ultimate gem of this plan was the minute artistic detail – the designers went to incredible lengths in their deception, including using translucent paint on the fake buildings in order to suggest the impression of the ‘dirty glass roofs of factories’.

There were also flashing white, yellow and red lamps installed to suggest that machines were in operation at night. Even false trains and railway tracks were part of the spectacle.

‘It’s an extraordinary story and one which even Parisians knew very little about,’ said Professor Jean-Claude Delarue, a leading historian based in the French capital, as reported in The Telegraph.