Shi'ite Muslim pilgrims walk to the holy city of Kerbala, ahead of the holy Shi'ite ritual of Arbaeen,...
Shi'ite Muslim pilgrims walk to the holy city of Kerbala, ahead of the holy Shi'ite ritual of Arbaeen, in Najaf, Iraq October 28, 2018. REUTERS/Alaa Al-Marjani