Original sentence: 645 - 683), was the second of the Umayyad rulers; he succeeded his father Muawiyah I.According to Shi'a, Hasan and Husayn had a treaty with Muawiyah in which Muawiyah rules until he dies, the rule then will go back to whoever isliving of the two brothers.Few thousands of Yazid's army, led by ‘Umar ibn Sa’d,  was closing around him.He strengthened the administrative structure of the empire and improved the military defenses of Syria, the Umayyad power base.Hussayn is also said to have had a reputation for piety.In Lebanon, poorly armed guerrillas freed their land from the most high tech armed occupation of israelis.Shi'a and Sunnis agree that Muhammed prophecized the killing of his grandson, although he always warned muslims to take care of his family of which Hussayn was one of the most dear to him.Since the succession of the caliphate had proved so divisive in the past (see Succession to Muhammad), Muawiyah I decided on the highly controversial step of breaking with the Islamic tradition of shura, or choice of a new leader by the leading men of the tribe.The resistance always compared their human losses to Karbala.Yazid was first opposed by the grandson of Muhammad, Husayn bin Ali, the son of the assassinated former caliph Ali ibn Abi Talib and the brother of Hasan Bin Ali the fifth and shortest lived rightly guided caliph
Edited sentence: 645 - 683), was the sixth Sunni Caliph, the second of the Umayyad line; he succeeded his father Muawiyah I.He is also said to have had a reputation for piety.He strengthened the administrative structure of the empire and improved the military defenses of Syria, th Umayyad power base.Since the succession of the caliphate had proved so divisive in the past (see Succession to Muhammad), Muawiyah I decided on the highly controversial step of breaking with the Arabian tradition of   shura, or choice of a new leader by the leading men of the tribe.Yazid was first opposed by the grandson of Muhammad, Husayn bin Ali, the son of the assassinated former caliph Ali ibn Abi Talib.Yazid's army, led by ‘Umar ibn Sa’d,  was closing around him