JER 51:27

27 [Tell] the nations to lift up a battle flag! [Tell them to] shout the battle-cry! Gather all their armies to fight against Babylon! Prepare the nations to attack Babylon. Summon [the armies of] the kingdoms [north of Babylonia]—from Ararat, Minni, and Ashkenaz. Appoint a commander for them, and bring [a great number of] horses; [there must be a huge number of horses]; that [huge number] will resemble [SIM] a swarm of locusts.