1) The tyrant king Abraha and his large army of elephants marched towards Mecca to destroy the Kaaba and steal the Black Stone.
2) The people of Mecca did not have the strength to defend the Kaaba, so they prayed to Allah for help.
3) Allah sent swarms of birds, each carrying three pebbles, which destroyed Abraha's army. No one survived except for a few men who returned to inform others.