What are these little guys up to? They're fighting the Battle of the Three Kings in 1578. This battle saw the Portuguese get involved in a fight for succession for the Moroccan Sultinate. The diorama was created by famous military miniaturist Edward Suren and now is on display in the American Legation in Tangier, Morocco.
Another of his dioramas shows the Battle of Tondibi in 1591, when the Sultan of Morocco invaded what is now northern Mali. He won the battle, but after a grueling desert march realized he's never control this remote region and went back home.
I've written about these battles, and the dioramas that depict them, in a pair of articles for Black Gate. Click the links for more info and large-format photos!