According to J.R.R. Tolkien, the five armies in The Hobbit are the Goblins, Wolves, Elves, Men, and Dwarves. However, the answer is not so simple, as the Eagles also played a significant role in the battle, even though they are not included in Tolkiens description. In the film adaptation by Peter Jackson, the five armies are Men, Elves, Orcs, Dwarves, and Eagles. Other figures involved in the conflict include Gandalf, Beorn the skin-changer, and Frodo Baggins, but none of them counts as an army. In the book, the armies are Dwarves, Men, Elves, Goblins, and Wargs.