In a historic event at St. Peter’s Square, Pope Leo XIV presided over his inaugural Mass, officially marking the beginning of his pontificate as the first American pope. A large crowd, including world leaders and bishops, witnessed the solemn ceremony as Leo addressed the challenges facing the global community. Vice President JD Vance, Secretary of State Marco Rubio, and leaders from Ukraine, Canada, and Australia were amongst those present, signifying the Mass's global significance.

Wearing traditional vestments, Pope Leo opened the Mass with a prayer in Latin, asking for guidance to be a worthy successor of St. Peter. His homily focused on the need for the Church to both preserve its rich heritage and navigate modern complexities. He expressed a commitment to lifting the voices of “ordinary people” and addressing urgent issues such as artificial intelligence, war, and social justice.

Born Robert Francis Prevost in Chicago, Pope Leo's election as the 267th pope signals a shift in Vatican leadership during a time of turmoil. His candidacy broke the tradition of cardinals typically selecting leaders from conservative backgrounds, and he emphasized a clear intention to unite Catholics worldwide while fostering dialogue with those of different faiths.

The influence of the Augustinian Order, to which Pope Leo belongs, is expected to shape his leadership style, stressing a balance between contemplation and action. This was echoed by fellow Augustinians attending the Mass, who noted Leo’s commitment to community engagement and pastoral care.

Among the notable moments was President Volodymyr Zelensky's presence, highlighting the Vatican's readiness to mediate peace talks between Ukraine and Russia. Pope Leo offered the Holy See as a venue for negotiations, a gesture promising an active role in advocating for peace amidst ongoing conflict.

As the service concluded, the new pope urged attendees to unify in love, extending an invitation to collaborate with “all women and men of goodwill.” The festive atmosphere reflected both joy in his election and awareness of the challenges ahead as Leo XIV steps into a pivotal role in shaping the future of the Catholic Church amidst contemporary global issues.