The Germanic Wars were a series of conflicts between the Roman Empire and various Germanic tribes from the 1st century BC to the 5th century AD. These wars were primarily fought to expand Roman territory and secure its borders against the increasing pressure from tribes such as the Goths, Vandals, and Franks. The most notable battles include the Battle of the Teutoburg Forest in 9 AD, where Roman legions suffered a devastating defeat. Over time, the Germanic tribes began to unite and push back against Roman control, leading to significant changes in the power dynamics of Europe. The culmination of these conflicts contributed to the decline of the Roman Empire and the eventual rise of various Germanic kingdoms, marking the transition from ancient to medieval Europe.