Tariq's army contained about 7,000 composed of largely Berber stock but also Arab troops Roderic, to meet the threat of the Umayyads, assembled an army said to number 100,000. Most of the army was commanded by, and loyal to, the sons of Wittiza, whom Roderic had brutally deposed. Ṭāriq won a decisive victory when Roderic was defeated and killed on July 19 at the Battle of Guadalete. This led Musa ibn Nusayr to assemble 18000 (mostly Arab) troops to plan a second invasion and within a few years Tariq and Musa captured two-thirds of the Iberian peninsula from the Visigoths.