Includes maps of: Environs of Ancient Rome - the Allia River; City of Rome in the Republic - the Capitoline and Citadel; Environs of Rome - Camerinum and the Ciminian Forest; Central Italy - the Caudine Forks; Saguntum and the Ebro River; Gaul and Northern Italy; Lake Trasimene; Iugum Calliculae and Casilinum; Cannae and Salapia; Carthago Nova, the Lagoon; Baecula and Ilipa; Metaurus River; Camps of Masinissa and Syphax; Eastern Mediterranean; Armenia and Parthia; Caesar's Campaigns in Britain; Teutoburg Forest; Roman March; Pass at Kalkriese; Defensive Installations in Britain; Stanegate Limes; Stanegate - Signaling; Hadrian's Wall; Hadrian's Wall - Signaling, the Wall Fort Phase; Hadrian's Wall - the Outpost Forts; Cumberland Coast - Signaling System; Stainmore Pass; Gask Ridge Installations; Gask Ridge Signaling; Antonine Wall - Phases One and Two; Antonine Wall - Signaling, Phase One; Antonine Wall - Signaling, Phase Two; German Limes; German Limes - Study Sector; Wetterau Study Sector; Wetterau Signaling System - Northern Zone; Wetterau Signaling System - Southern Zone; German/Raetian Limes; Upper German/Raetian Border - River Valleys; Signaling - Southern Raetian Limes, All Installations Used; Signaling - Southern Raetian Limes Using Only Known or Likely Installations.

Trust in the gods, but verify -- Rome conquers Italy: methods and motives -- Hannibal's spies -- Diplomat, trader, messenger, client, spy: Rome's eyes and ears in the east -- The high price of failure: Crassus and the Parthians -- Caesar goes to Britain -- Julius Caesar and the end of the Roman Republic -- The Augustan revolution : communications and internal security -- Roman military intelligence -- Intelligence systems failure : the slaughter of Varus in the Teutoburgerwald -- Transmission and signaling -- The Roman secret service -- Big brother is watching you.