I want to bring in abc's christiane amanpour in cairo tonight. Christiane, you've been with us every step of the way on this. This truce came after secretary clinton's arrival. How big a role did she... See More
I want to bring in abc's christiane amanpour in cairo tonight. Christiane, you've been with us every step of the way on this. This truce came after secretary clinton's arrival. How big a role did she play and how big a role was this for the new government of egypt in fashioning this truce? Reporter: Well, any time a secretary of state travels, it's really important. She was there for the closing. But all the american officials have said, this was egypt's proposal. America spoke to hamas through egypt. Israel spoke to hamas through egypt. And president obama in his statement said that he had urged the israeli prime minister to accept egypt's proposal. They definitely played the major role here in getting hamas to the table. I had an exclusive interview with the head of hamas, he said what they want out of it is a lifting of the siege. That may happen. What israel wants out of it is no more rockets into israel and no more supply of weapons to gaza. They might get that, as well. But of course, we're going to watch. It's fragile. You heard the word the white house used today, tenuous, late this afternoon. What is your sense on the ground about how strong the truce is? Reporter: Well, it's really early days. It went into effect. Everybody in gaza is tell brat i celebrating, as you've reported. But people are worried, of course. It looks like this could be a turning point, but absent of a peace process, david, absent a real peace process, yes, there are concerns there could be another truce that could last a couple of years, maybe, and then fall apart again.
This transcript has been automatically generated and may not be 100% accurate.