Second Punic War in 217. Moving to southern Italy in 216, Hannibal at Cannae annihilated the largest army the Romans had ever assembled. After the death or imprisonment of 130,000 Roman troops in two years, 40% of Rome's Italian allies defected to Carthage, giving her control over most of southern Italy. Macedon and Syracuse joined the Carthaginian side after Cannae and the conflict spread to Greece and Sicily. From 215–210 the Carthaginian army and navy launched repeated amphibious assaults to capture Roman Sicily and Sardinia but were ultimately repulsed. Against Hannibal's skill on the battlefield, the Romans adopted the Fabian strategy – the
Ancient maritime history Ancient maritime history Maritime history dates back thousands of years. In ancient maritime history, evidence of maritime trade between civilizations dates back at least two millennia. The first prehistoric boats are presumed to have been dugout canoes which were developed independently by various stone age populations. In ancient history, various vessels were used for coastal fishing and travel. A mesolithic boatyard has been found from the Isle of Wight in Britain The Arabian Sea has been an important marine trade route since the era of the "coastal sailing vessels" from possibly as early as the 3rd millennium BC, certainly the