Numerous armies of men pillaging and destroying a country, Joel 1:6. Achmetes, “If any king or potentate see locusts come upon a place, let him expect a powerful multitude of enemies there.”
[For a more in-depth study see “Study Series 16 Lesson 2 Rev. Chapters 5 thru 9”]
[Also, for a more in-depth study on biblical symbolism see eschatology “Study Series 5b Hebraic Language Symbolism”]