Alfred von Schlieffen his troops were pushed back in the Battle of the Marne. Schlieffen was perhaps the best-known contemporary strategist of his time, although criticised for his "narrow-minded military scholasticism." Schlieffen's operational theories were to have a profound impact on the development of manoeuvre warfare in the 20th century, largely through his seminal treatise, "Cannae", which concerned the decidedly un-modern battle of 216 BC in which Hannibal defeated the Romans. Cannae had two main purposes. First, it was to clarify, in writing, Schlieffen's concepts of manoeuvre, particularly the manoeuvre of encirclement, along with other fundamentals of warfare. Second, it was to be
Perusia Perusia The ancient Perusia, now Perugia, first appears in history as one of the 12 confederate cities of Etruria. It is first mentioned in the account of the war of 310 or 309 BC between the Etruscans and the Romans. It took, however, an important part in the rebellion of 295 BC and was reduced, with Vulsinii and Arretium (Arezzo), to seek for peace in the following year. It seems the city was in the Antonii's clientela since this period, as it was said by historians during imperial times. In 216 BC and 205 BC it assisted Rome in the