Background: Women in Syria constitute 49.4% of Syria's population, and are active participants not only in everyday life, but also in the socio-political fields. Notable examples are president Assad's chief political and media adviser, Bouthaina Shaaban, who also held office as Minister of Expatriates from 2002 and 2008, and Hadiya Khalaf Abbas, the officially elected speaker of the People's Council of Syria and the first woman to have held that position. Whatsoever, the Syrian Civil War put a new obstacle on Syrian women, forcing them to face increasing levels of violence, including war rape, and traditional abusive practices such as honor killings which occur in rural areas and areas held by extremist terrorists.
Context: With the Syrian Civil War, the Kurdish populated area in Northern Syria has gained de facto autonomy as the Federation of Northern Syria - Rojava, with the leading political actor being the progressive Democratic Union Party (PYD). Kurdish women have several armed and non-armed organizations in Rojava, and enhancing women's rights is a major focus of the political and societal agenda. Kurdish female fighters in the Women's Protection Units (YPJ) played a key role during the Siege of Kobani and in rescuing Yazidis trapped on Mount Sinjar, and their achievements have attracted international attention as a rare example of strong female achievement in a region in which women are heavily repressed.  The civil laws of Syria are valid in Rojava, as far as they do not conflict with the Constitution of Rojava. One notable example for amendment is personal status law, in Syria still Sharia-based, where Rojava introduced civil law and proclaims absolute equality of women under the law and a ban on forced marriage as well as polygamy was introduced, while underage marriage was outlawed as well. For the first time in Syrian history, civil marriage is being allowed and promoted, a significant move towards a secular open society and intermarriage between people of different religious backgrounds.  The legal efforts to reduce cases of underage marriage, polygamy and honor killings are underpinned by comprehensive public awareness campaigns. In every town and village, a women's house is established. These are community centers run by women, providing services to survivors of domestic violence, sexual assault and other forms of harm. These services include counseling, family mediation, legal support, and coordinating safe houses for women and children. Classes on economic independence and social empowerment programs are also held at women's houses.  All administrative organs in Rojava are required to have male and female co-chairs, and forty percent of the members of any governing body in Rojava must be female. An estimated 25 percent of the Asayish police force of the Rojava cantons are women, and joining the Asayish is described in international media as a huge act of personal and societal liberation from an extremely patriarchical background, for ethnic Kurdish and ethnic Arab women alike.  The PYD's political agenda of "trying to break the honor-based religious and tribal rules that confine women" is controversial in conservative quarters of society.
Question: What is the federation of Norther Syria?

Answer:
With the Syrian Civil War, the Kurdish populated area in Northern Syria has gained de facto autonomy as the Federation of Northern Syria