Tonight on PBS News weekend, Pope Leo the 14th calls for peace in Gaza and Ukraine and an end to war in the first Sunday address of his papacy.

Then, one woman's mission to help save endangered cheetahs, the fastest land animal on the planet.

And a new book explores the shared experiences of four women from around the world as they navigate

their first year as mothers.

The woman in Nairobi, Kenya, and the woman in Salt Lake City, Utah said almost verbatim the same thing,

which was, I can't believe I'm someone's mom now.

Yeah. the same thing, which was, I can't believe I'm someone's mom now. Good evening. I'm Laura Barone Lopez. John Yang is away. Pope Leo the 14th delivered his

first Sunday noon blessing as pontiff, calling for unity in a polarized church and appealing to the world's major powers for peace.

He delivered his message to an estimated 100,000 people from the loja of St. Peter's Basilica, the same balcony where he was introduced as the new leader of the Roman Catholic Church.

The pontiff welcomed the uneasy leader of the Roman Catholic Church.

The pontiff welcomed the uneasy truce between India and Pakistan.

He also called for an end to the violence in Ukraine and Gaza.

I carry in my heart the sufferings of the beloved Ukrainian people.

Let every effort be made to achieve as soon as possible an authentic, just,

and lasting peace. I am deeply saddened by what is happening in the Gaza Strip. Let the fire

cease immediately. Let humanitarian aid be provided to the exhausted civilian population, and may all

hostages be freed.

John Allen has covered the Vatican for 30 years. He's editor of Crux, an online site that covers

the Vatican and the Catholic Church. So John, what did you take from the Pope's first Sunday message?

Well, if there was any question about whether Pope Leo the 14th would be a less political figure than Francis or, for that matter, John Paul the second before him, I think we have the answer to that question and the answer is clearly no.

Pope Leo intends to continue to address the global crises of the moment and try to be that voice

of conscience on the global stage for humanitarian concerns. You heard him addressing

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