The hajj consists of a series of religious rites that are completed over five days in Islam's holiest city, Mecca, and surrounding areas of western Saudi Arabia.
Hosting the hajj is a matter of prestige for Saudi rulers, as the custodianship of Islam's holiest sites is the most powerful source of their political legitimacy.
Before the pandemic, Muslim pilgrimages were major revenue earners for the kingdom, bringing in about $12 billion annually.