Despite security threats by Takfiri terrorists millions of pilgrims across the world throng the holy city of Karabala for the commemoration of Imam Hussein’s (AS) Arbaeen.

Despite security threats by Takfiri terrorists millions of pilgrims across the world throng the holy city of Karabala for the commemoration of Imam Hussein’s (AS) Arbaeen.

Pictures coming out of Iraq show mourners dressed in black, walking towards Karbala where they will take part in the world's largest human gathering, around the holy shrine of Imam Hussein (AS) this weekend.

Security is being increased around Karbala ahead of the pilgrims’ arrival but many choose to make the 55-mile journey on foot from Najaf.

Arbaeen marks 40 days after the martyrdom anniversary of Imam Hussein (PBUH), the grandson of Prophet Mohammad (PBUH).

The commemoration is considered one of the biggest pilgrimages in the world with millions travel through Iraq, defying risks by Takfiri terrorists.

Imam Hussein and 72 of his loyal companions, including family members, were martyred on Ashura, the tenth day of the lunar month of Muharram, in the battle of Karbala against the second Umayyad caliph, Yazid I, in 680 A.D. Imam Hussein was killed after he refused to pledge allegiance to the tyrant ruler.