Sources:
(1) Gall, Carlotta. "Turkey Threatens Incursion Into Syria, Raising U.S. Concerns." The New York Times, 14 Dec 2018. https://www.nytimes.com/2018/12/14/world/middleeast/turkey-threatens-new-incursion-into-syria.html.
(2) “Turkish Involvement in the Syrian Civil War.” Wikipedia, Wikimedia Foundation, 11 Apr. 2019, en.wikipedia.org/wiki/Turkish_involvement_in_the_Syrian_Civil_War.
(3) "Turkey's Response to the Syrian Refugee Crisis and the Road Ahead." World Bank, The World Bank Group, Dec. 2015,
http://documents.worldbank.org/curated/en/583841468185391586/pdf/102184-WP-P151079-Box394822B-PUBLIC-FINAL-TurkeysResponseToSyrianRefugees-eng-12-17-15.pdf
(4) "Turkey Stops Registering Syrian Asylum Seekers." Human Rights Watch, Human Rights Watch, 16 July 2018, https://www.hrw.org/news/2018/07/16/turkey-stops-registering-syrian-asylum-seekers
(5) “Turkey's Syrian Refugees: Defusing Metropolitan Tensions.” Crisis Group, The International Crisis Group, 28 Dec. 2018, www.crisisgroup.org/europe-central-asia/western-europemediterranean/turkey/248-turkeys-syrian-refugees-defusing-metropolitan-tensions.
(1) Gall, Carlotta. "Turkey Threatens Incursion Into Syria, Raising U.S. Concerns." The New York Times, 14 Dec 2018. https://www.nytimes.com/2018/12/14/world/middleeast/turkey-threatens-new-incursion-into-syria.html.
(2) “Turkish Involvement in the Syrian Civil War.” Wikipedia, Wikimedia Foundation, 11 Apr. 2019, en.wikipedia.org/wiki/Turkish_involvement_in_the_Syrian_Civil_War.
(3) "Turkey's Response to the Syrian Refugee Crisis and the Road Ahead." World Bank, The World Bank Group, Dec. 2015,
http://documents.worldbank.org/curated/en/583841468185391586/pdf/102184-WP-P151079-Box394822B-PUBLIC-FINAL-TurkeysResponseToSyrianRefugees-eng-12-17-15.pdf
(4) "Turkey Stops Registering Syrian Asylum Seekers." Human Rights Watch, Human Rights Watch, 16 July 2018, https://www.hrw.org/news/2018/07/16/turkey-stops-registering-syrian-asylum-seekers
(5) “Turkey's Syrian Refugees: Defusing Metropolitan Tensions.” Crisis Group, The International Crisis Group, 28 Dec. 2018, www.crisisgroup.org/europe-central-asia/western-europemediterranean/turkey/248-turkeys-syrian-refugees-defusing-metropolitan-tensions.