legion
adjective
°Numerous; vast; very great in number; multitudinous.
"Russia's labor and capital resources are woefully inadequate to overcome the state's needs and vulnerabilities, which are legion."
noun
°The major unit or division of the Roman army, usually comprising 3000 to 6000 infantry soldiers and 100 to 200 cavalry troops.
°A large military or semimilitary unit trained for combat; any military force; an army, regiment; an armed, organized and assembled militia.
synonyms: host, mass, multitude, sea more» , throng