Who are the TSO? Each time Turkey invades Syria, they disguise their invasion as a peacekeeping mission & use Turkish Supported Opposition or TSO. These are mercenary insurgents used by Erdogan. They change their names many times but many are al-Qaeda & some are ISIS fighters. 
The TSO disguise themselves as opposition to the Assad regime. In reality, they are terror groups that are paid, supported, & controlled by Turkey. Groups like al-Nusra Front and Ahrar al-Sham commit many atrocities and human rights violations against the people of Syria.
