Commentarii de Bello CiviliCommentarii de Bello Civili (Commentaries on the Civil War), or Bellum Civile, is an account written by Julius Caesar of his war against Gnaeus Pompeius and the Roman Senate. It consists of three books covering the events of 49–48 BC, from shortly before Caesar's invasion of Italy to Pompey's defeat at the Battle of Pharsalus and flight to Egypt. It was preceded by the much longer account of Caesar's campaigns in Gaul and was followed by similar works covering the ensuing wars against the remnants of Pompey's armies in Egypt, North Africa, and Spain.
FortificationA fortification is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from Latin fortis ("strong") and facere ("to make"). From very early history to modern times, defensive walls have often been necessary for cities to survive in an ever-changing world of invasion and conquest. Some settlements in the Indus Valley Civilization were the first small cities to be fortified.
BoiiThe Boii (Latin plural, singular Boius; Βόιοι) were a Celtic tribe of the later Iron Age, attested at various times in Cisalpine Gaul (present-day Northern Italy), Pannonia (present-day Austria and Hungary), present-day Bavaria, in and around present-day Bohemia (after whom the region is named in most languages; comprising the bulk of today's Czech Republic), parts of present-day Slovakia and Poland, and Gallia Narbonensis (located in modern Languedoc and Provence).
NerviiThe Nervii were one of the most powerful Belgic tribes of northern Gaul at the time of its conquest by Rome. Their territory corresponds to the central part of modern Belgium, including Brussels, and stretched southwards into French Hainault. During their first century BC Roman military campaign, Julius Caesar's contacts among the Remi stated that the Nervii were the most warlike of the Belgae. In times of war, they were known to trek long distances to take part in battles.
GaulGaul (Gallia) was a region of Western Europe first clearly described by the Romans, encompassing present-day France, Belgium, the Netherlands, Luxembourg, and parts of Switzerland, Germany, and Northern Italy. It covered an area of . According to Julius Caesar, who took control of the region on behalf of the Roman Republic, Gaul was divided into three parts: Gallia Celtica, Belgica, and Aquitania. Archaeologically, the Gauls were bearers of the La Tène culture during the 5th to 1st centuries BC.
Julius CaesarGaius Julius Caesar (ˈsiːzər, ; ˈɡaːiʊs ˈjuːliʊs ˈkae̯sar; 12 July 100 BC – 15 March 44 BC) was a Roman general and statesman. A member of the First Triumvirate, Caesar led the Roman armies in the Gallic Wars before defeating his political rival Pompey in a civil war, and subsequently became dictator from 49 BC until his assassination in 44 BC. He played a critical role in the events that led to the demise of the Roman Republic and the rise of the Roman Empire.