The Netherlands, as a nation state, dates to 1568, when the Dutch Revolt created the Dutch Empire. Previously, the Germanic tribes had no written language during the ancient and early medieval periods, so what we know about their early military history comes from accounts written in Latin and from archaeology. This causes significant gaps in the historic timeline. Germanic wars against the Romans are fairly well documented from the Roman perspective; however, Germanic wars against the early Celts remain mysterious because neither side recorded the events. Wars between the Germanic tribes in Northern Belgium and the present day Netherlands, and various Celtic tribes that bordered their lands, are likely due to their geographical proximity.
Belgium, a country with a Dutch-speaking majority, became an independent state in 1830 when it seceded from the Netherlands. Despite the contemporary political boundaries, they share much of the same military history.
Ancient times
Germanic tribes are thought to have originated during the Nordic Bronze Age in northern Germany and southern Scandinavia. The tribes spread south, possibly motivated by the deteriorating climate of that area. They crossed the River Elbe, most likely overrunning territories formerly occupied by Celtic people. In the East, other tribes, such as Goths, Rugians and Vandals, settled along the shores of the Baltic Sea pushing southward and eventually settling as far away as Ukraine. The Angles and Saxons migrated to England. The Germanic peoples often had unsettled relationships with their neighbours and each other, leading to a period of over two millennia of military conflict over various territorial, religious, ideological and economic issues.
Germanic tribes often fought both against and for the Roman Empire. On Christmas Day 406, with the freezing of the Rhine, Franks, Allemanni, Burgundians, Suebi and Vandals crossed the Rhine from present day Germany into Gaul. The Franks later expelled the Goths from Aquitaine and absorbed the Burgundians. They were later to give their name to modern France. In 455, under the leadership of their King Gaiseric, the Vandals seized Rome, plundering it for 15 days (and henceforth giving their name to wanton destruction). From 772 to 814, the Frankish King Charlemagne held the Carolingian Empire, an empire which contained nearly all of the following modern day countries: the Netherlands, Belgium, Luxembourg, France (except Brittany), Germany, Austria, Switzerland, Italy north from below Rome, Slovenia, Liechtenstein, Andorra, Monaco and parts of Spain (northeast), Czech Republic (west), Hungary (west) and Croatia (northwest).
The Batavi
The Batavi (Batavians) were a Germanic tribe, originally part of the Chatti, reported by Tacitus to have lived around the Rhine delta, in the area which is currently the Netherlands, "an uninhabited district on the extremity of the coast of Gaul, and also of a neighbouring island, surrounded by the ocean in front, and by the river Rhine in the rear and on either side" (Tacitus, Histories iv). This led to the Latin name of Batavia for the area. The same name is used for several military units, originally raised among the Batavi.
They were mentioned by Julius Caesar in his commentary Gallic Wars as living on an island formed by the Meuse River after it is joined by the Waal, 80 Roman miles from the mouth of the river. He said there were many other islands formed by branches of the Rhine, inhabited by a "savage, barbarous nation", some of whom were supposed to live on fish and the eggs of sea-fowl.
Tacitus named the Mattiaci as a similar tribe under homage, but on the other side of the Rhine. The areas inhabited by the Batavians were never occupied by the Romans, as the Batavians were allies.
The Batavians incorrectly became regarded as the sole and eponymous ancestors of the Dutch people. The Netherlands were briefly known as the Batavian Republic. Moreover, during the time Indonesia was a Dutch colony (the Dutch East Indies), the capital (now Jakarta) was named Batavia. If the ancestry of most native Dutch people were traced back to Germanic tribes, most would lead to the Franks, Frisians and Saxons. Dutch is in fact a Low Frankish language, and is the only language (together with Afrikaans, which descends from Dutch itself) to be a direct descendant of Old Frankish, the language of the Franks.