In 215 BC , Qin Shi Huangdi ordered Request General Meng Tian to set out Military_operation against the Xiongnu tribes in the Ordos region , and establish Building a frontier region at the loop of the Yellow River .

However , relations between some Kurdish organizations and the Iranian government quickly deteriorated Cause_change_of_position_on_a_scale , and though Shi ' a Kurds and some tribal leaders turned Becoming towards the new Shi ' a Islamic State , Sunni Kurdish leftists continued the nationalist project in their enclave in Kurdistan Province .

However , relations between some Kurdish organizations and the Iranian government quickly deteriorated Cause_change_of_position_on_a_scale , and though Shi ' a Kurds and some tribal leaders turned Becoming towards the new Shi ' a Islamic State , Sunni Kurdish leftists continued the nationalist project in their enclave in Kurdistan Province .

The two groups were also divided Creating along religious lines , with most Sunnis and Druze supporting Supporting the government , and most Shi ' a supporting Supporting the opposition group .

The events of the Second Fitna intensified Cause_change_of_strength sectarian tendencies in Islam and various doctrines were developed Coming_to_be within what would later become the Sunni and Shi ' a sects of Islam .