Relations between the People's Protection Units (YPG) and the Free Syrian Army (FSA) are unclear and varied among the different FSA factions. Both are opposed to the Islamic State of Iraq and the Levant. However, several clashes between the two have taken place. Under pressure from the United States, some FSA groups coordinate with the YPG to battle ISIL under the name of the Syrian Democratic Forces, although some other FSA groups remained in conflict with the YPG and the SDF, including FSA groups in the SDF.
YPG fighters in Ras al-Ayn fighting al-Nusra Front
Kobanî Canton after breaking the siege in April 2015; some towns at the outskirts are jointly controlled by FSA and YPG Controlled by the People's Protection Units Controlled by the Syrian opposition Controlled by Islamic State of Iraq and the Levant
The People's Defense Units (YPG), also called People's Protection Units, is a mainly Kurdish militant group in Syria and the primary component of the Syrian Democratic Forces (SDF). YPG provides updates about its activities through YPG Press Office Telegram channel and social media accounts.
Women's Protection Units in November 2014
U.S. Army M1126 Stryker armored vehicle in Al-Hasakah, May 2017