One of the mysteries of the English language finally explained.
Chiefly with capital initials. The principal French army deployed in Napoleon's military campaigns between 1805 and 1814. Also (more loosely): the entirety of the multinational forces deployed by Napoleon.
Early 19th century; earliest use found in The Times. From French Grande Armée from grande, feminine of grand + armée.
Grande Armée/ˌɡrɒnd ɑːˈmeɪ/
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