Map of the campaigns of the years 55 and 54 BC, during which Caesar led two expeditions to Britain, subdued the Treveri, and put down another Gallic revolt led by Ambiorix (Caesar's Gallic War Book 4, 5). From H.F. Towle and P.R. Jenks, Caesar’s Gallic War (Boston: D.C. Heath & Co., 1903), p. 76.
Map of the arena of the first expedition to Britain and a campaign against the Germans (Caesar's Gallic War Book 4). Brown shows territory that was already under Roman control when Caesar received the province, red states that Caesar conquered, and blue state that submitted to Caesar without fighting. From Arthur Tappan Walker, Caesar's Gallic War (Chicago: Scott, Foresman and Co. 1907), p. 254.
Map of the English Channel and Britain which Caesar crossed twice (Caesar's Gallic War 4.23, 5.8). From Napoleon III, History of Julius Caesar Volume 2 (New York: Harper & Brothers, 1866), plate 16.
Map of the arena of the campaign of 54 BC, which included a German invasion into, the Romans' first crossing of the Rhine, and the first expedition to Britain (Caesar's Gallic War Book 4). From Napoleon III, History of Julius Caesar Volume 2 (New York: Harper & Brothers, 1866), plate 14.