By 2015, much of the recruitment and vetting for the FSA was taking place in Turkish regions bordering northern Syria, where thousands of opponents of al-Assad’s regime had fled with their families. The CIA relied on its Turkish counterpart, the National Intelligence Organization, known as MİT, to recruit and conduct initial vetting of FSA volunteers from Syrian refugee camps. The MİT was desperately short of personnel for such a large-scale operation, and reached out to the Turkish Special Forces Command for assistance. Eventually, Special Forces Command officers were put in charge of reaching out to potential FSA volunteers and vetting them. Successful candidates would then be forwarded to the CIA.

One such officer was Lt. Murat Aletirik, who vetted dozens of FSA volunteers in 2015 and 2016. However, he was arrested following the failed coup of July 15, 2016, and was tried for alleged participation in armed insurrection against the Turkish government. During his testimony in 2018, which was leaked this week, Lt. Aletirik told the court that he and his fellow officers were issued guidelines by the MİT on how to select fighters for the CIA-funded program.

According to Lt. Aletirik, the MİT guidelines centered on whether FSA candidates were “sympathetic towards the [Kurdistan Workers’ Party, known as] PKK, the [Democratic Union Party, or] PYD, or offshoots of the PKK”. These groups support autonomy for the Kurds, a non-Turkish and non-Arab ethnic group in the Middle East. Turkey, along with the European Union and the United States, classify the Turkish-based PKK as a terrorist organization. Turkey claims that the PYD, which operates in Syria, is also a terrorist group. However, Washington supports and funds the PYD, and even worked with its militias in the war against the Islamic State.

According to Lt. Aletirik, the MİT guidelines had little to say about how to filter out potential FSA volunteers who were found to harbor sympathies for Salafi-Jihadist groups, such as the Islamic State, al-Qaeda, or al-Nusra. In fact, said Lt. Aletirik, he and his fellow officers had instructions to downplay such findings and forward candidates to the CIA, so long as they did not have pro-Kurdish sympathies. It is believed that, eventually, the CIA caught on to this, and began turning down hundreds of FSA candidates that had been vetted by the Turkish military. This slowed down the vetting process tremendously, with only a fraction —possibly fewer than 10 percent— of all candidates joining the CIA-run program.

In 2017, the United States shut down the program, reportedly after a direct order was issued by President Donald Trump. Today the FSA is almost completely supported and funded by the Turkish state. Locals often refer to it tongue-in-cheek as the “Free Syrian Turkish Army”.