The Dersim rebellion was a Kurdish uprising against the central government in the Dersim region of eastern Turkey, which includes parts of Tunceli Province, Elazığ Province, and Bingöl Province. The rebellion was led by Seyid Riza, a chieftain of the Abasan tribe. In 1937 and 1938, the Turkish Armed Forces carried out three Dersim operations against the rebellion, including the Dersim massacre, of civilians: thousands of Kurds were killed and many others were internally displaced. Twenty tons of “Chloracetophenon, Iperit and so on” were ordered and used in the massacre.

Kurdish people or Kurds are an Iranic ethnic group native to the mountainous region of Kurdistan in Western Asia, which spans southeastern Turkey, northwestern Iran, northern Iraq, and northern Syria. There are exclaves of Kurds in Central Anatolia, Khorasan, and the Caucasus, as well as significant Kurdish diaspora communities in the cities of western Turkey and Western Europe. The Kurdish population is estimated to be between 30 and 45 million.