Fedayeen is an Arabic term used to refer to various military groups willing to sacrifice themselves for a larger campaign or leader.
Fedayeen from Fatah in Beirut, Lebanon, 1979
The Order of Assassins was a Nizari Isma'ili Shia Islamic military order founded by Hasan-i Sabbah in 1090. Based in the Nizari Isma'ili state, which comprised a network of mountain castles in Persia
Fedayeen
…Fidayun" is the plural of "fidayi" (فدائي fidāʻiyy ), meaning 'one who redeems/sacrifices themselves'. Hassan-i-Sabbah (c. 1050–1124), who founded the Order of Assassins in Persia and Syria, used the term to refer to his fanatical devotees. Fidāʼīyīn is the plural of fidāʼī, which means "sacrifice". It is widely understood…
14th-century depiction of the assassination of Nizam al-Mulk, a Seljuk vizier, by a fida’i in 1092.
Remains of the Alamut Castle in Qazvin, Iran
Masyaf Castle in Hama. It was the headquarters of the Assassins in the Levant. Picture taken in 2017
Hassan al-Sabbah (right) depicted with his followers, in the first edition of The Travels of Marco Polo, c. 1310