Experts see the new pontiff as less confrontational than his predecessor, but willing to stand up for the church's teachings.

The motto of one newly elected American world leader: " Fight! " The other introduced himself to the world with his first public word as pope: “ Peace."

ROME - The new Chicago-raised Pope Leo XIV faces an immediate challenge in his native country: taming the brawling U.S. tribe of Catholics, riven by political divisions that have thwarted the will of his predecessors.