Complex sentence: The Siege of Talkalakh is a military operation conducted by the Syrian military in the city of Talkalakh against what the government calls terrorist groups, while the opposition called it a crackdown against pro-democracy protesters as part of the 2011 Syrian uprising.
Split into simpler sentences: The Siege of Talkalakh was a military operation conducted by the Syrian military in the city of Talkalakh against what the government called terrorist groups. The opposition called it a crackdown against pro-democracy protesters as part of the 2011 Syrian uprising.