The Islamic conquest of Afghanistan (642 – 870) began in the mid- seventh century after Persia Islamic conquest is complete, when the Arab Muslims defeated the Sassanid Empire in the battles of Ualaja, Cadésia and Nemavande. The Muslim Arabs then began to move towards the lands east of Persia and in 642, they conquered the city of Herate. In mid- 667, the area was under invasion from Afghanistanby the Arabs, but in 683, Kabul revolted and completely defeated the invading army, which was led by the Governor of Sistan. Only in 870, Kabul and the Afghan area were conquered by the Arabs. Afghanistan’s complete conversion to Islam occurred during the rule of the Gaznévida Empire, or in the 11th century.