Complex sentence: The Battle of Shadadeh was a three day-long battle fought between government forces loyal to Bashar Al-Assad and Islamists Al-Nusra fighters in the city of Shadadeh, located near the Iraqi border.
Split into simpler sentences: The Battle of Shadadeh was a 3 day-long battle fought between government forces loyal to Bashar Al-Assad and Islamists Al-Nusra fighters. For three days Islamists clashed with regime forces in the city of Shadadeh, located near the Iraqi border.