Grande Armée
/ˌɡrɒnd ɑːˈmeɪ/noun
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.
Origin
Early 19th century; earliest use found in The Times. From French Grande Armée from grande, feminine of grand + armée.