The Sara (Kameeni) are the largest ethnic group in the Republic of Chad, they're concentrated in the Moyen-Chari, the Logone Oriental, the Logone Occidental, and parts of the Tandjile regions. They're originally from the Nile valley and migrated towards what is now Chad during the sixteenth century AD, seeking refuge in the south against northern Muslim slave raiders.[6][failed verification] After their arrival, they continued to be the target of violent raids by northern Fulani and Arab people.[2][7][8]