Hector Camacho remembers Robert Prevost, set to be formally inaugurated as Pope Leo XIV on Sunday, as a young jeans-wearing missionary from Chicago with broken Spanish, landing in Peru at a time when the country was being torn apart by internal conflict.

Cardinal Robert Francis Prevost – now known as Pope Leo XIV — is the first pope from the United States. The 69-year-old from Chicago is known as a leader with global experience. He spent much of his career as a missionary in South America and most recently led a powerful Vatican office for bishop appointments.