France is credited with developing what military innovation during World War I?
Correct answer: Camouflage

BlueEyedAlien
French word = French innovation.

Player #125843019
It was obvious the French did not have anything to do with the other 3

Player #92723922
I knew it wasn't submarines or radar, and jet planes came along later, so it had to be camouflage. And anyway, it's a French word.

antzuzu
France. Always in fashion ♡♡

Lionessa
It stands to reason. If it helps you hide from battle...