Nick: Good evening.

I'm Nick Schifrin.

John Yang is away.

Tonight, President Donald Trump is predicting he and Chinese president XI Jinping will sign a "Comprehensive trade deal," during Mr.

Trump's first visit to Asia since returning to the white house.

The high-stakes trip comes as the president faces a constellation of international challenges -- from the relationship between the world's two largest economies, to trying to end wars in Ukraine and gaza.

On his way to Asia, president trump made a pitstop in Doha to greet qatari leaders who helped broker the gaza ceasefire.

Pres.

Trump: You have a safe Middle East right now, and you're gonna keep it that way for a long time.

Nick: But what lies ahead is perhaps the single most important meeting of his new term -- with Chinese leader XI jinping.

President trump says he's looking to make a trade deal, to avoid threatened 157% tariffs.

The U.S.

Wants beijing to buy more American soybeans.

There are also tensions over technology critical minerals, , and Taiwan.

But the U.S.

Will not walk away from Taiwan in pursuit of a Chinese trade deal, secretary of state Marco Rubio said tonight.

Reporter: Will China need to make concessions to get a deal?

Are you willing to pause tariffs?

Pres.

Trump: Yeah, sure they'll have to make concessions.

I guess we would too.

Nick: The president says he had no plans to repeat his high-profile meetings with north Korean leader Kim Jong-un but , that he'd be willing to meet.

Pres.

Trump: He knows I'm coming.

Yeah, I'd be open to it, 100%.

I got along very well with him, Kim Jong-un.

Nick: But ongoing wars loom on the president's agenda.

This morning in Ukraine, smoke filled a residential neighborhood after an overnight Russian attack.

And in gaza, the Israeli military said it conducted an airstrike against an imminent threat, despite the ceasefire.

In southern gaza, trucks are rolling in, as U.N.

Agencies are rushing in badly needed aid.

Earlier today, I talked with the world food program's country director Antoine Renard.

>> Two weeks since the ceasefire, we have reached 320,000 people directly.

We have scaled up.

We now have 15 bakeries up and running 23 hours out of 24.

700,000 people get fresh bread on a daily basis.

Nick: The need has been massive.

The international organization that declares famine says there was famine in northern gaza before the ceasefire.

Are you able to reach all of the people who need this help the most?

>> The level and the scale of what we have managed to do is not yet sufficient versus what we should actually be doing.

When I was mentioning 320,000 people getting the boxes, it is only 20% of what we should reach on a monthly basis.

We have 10,000 metric tons getting into gaza.

This is 1/6 what we need to cover stable food for a full month.

Managed to reach the population in gaza.

N July, it one million on average.

We need to gear up the quality.

Some of the families were telling me they dream of chicken and eggs.

But because many of these foods are not coming in sufficiently, they cannot afford it.

Nick: Israel has long argued hamas was looting trucks.

What can you do to prevent that from happening?

>> We have always known events related to the program on the ground.

The system is working in gaza.

Nick: How important is it the ceasefire holes and turns into a permanent peace?

>> That is the most important.

Sitting with people in gaza a week and a half ago, I can tell you the main message from the population, one of the families was telling me we will not survive if we are getting again bombs on our head.

I think there is now this sentiment of hope, but we need to be cautious.

We always to the civilian population in gaza -- we owe it to the civilian population in gaza.

It is so dire to get out of two years of war.

I think the international community owes it to the people in gaza not to face conflict anymore.

Nick: The country director for the world food program, thank you very much.

Tonight, president trump suggested for the first time hamas faced a deadline to hand over the remaining hostages.