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The Mandalorian Wars was the term given to the sixteen years of conflict between the Mandalorian warrior culture and the Galactic Republic that began in 3976 BBY with the Battle of Althir. Occurring two decades after the end of the Great Sith War, the Mandalorian Wars spanned almost two decades themselves, though historians often disagreed on the endpoints of the conflict; the Mandalorians raided star systems in the Outer Rim Territories for over a decade before they actually came into conflict with the Republic Military in 3965 BBY. Led by Mandalore the Ultimate, who pioneered the Neo-Crusader movement with the help of his lieutenant, Cassus Fett, the Mandalorians conquered systems along the eastern edge of the galaxy. Though their conquests included the near-extinction of the Cathar species, it was not until their assaults on worlds near the planet Taris that they drew the Republic's attention. After a year of small conflicts known as the False War, the Mandalorians broke through the Republic's lines and bes ieged Taris in 3963 BBY, and then invaded the Republic through three separate corridors in what became known as the Onslaught.
