Map of Central Gaul by T.A. Dodge

Map of the areas of Gaul that banded together against Caesar after being upset by the execution of a Gallic leader (Caesar's Gallic War 7.1). From Theodore Ayrault Dodge, Caesar: A History of the Art of War Among the Romans Down to the End of the Roman Empire, with a Detailed Account of the Campaigns of Caius Julius Caesar (Boston: Houghton Mifflin, 1892), p. 229.