A spokesman for UN Secretary-General Ban Ki-Moon has said that any violation of the ceasefire agreed today would be "utterly irresponsible".
He said the blockade of Gaza must end, and that the territory must be brought back under the control of one legitimate Palestinian government adhering to Palestine Liberation Organisation commitments.
"Israel's legitimate security concerns must be addressed," he added.
A number of immediate steps have been agreed, while more complex issues will be addressed in further talks set to begin within a month.
After the success of the Ice Bucket Challenge, the people of Gaza are using rubble and dirt instead of cold water to highlight their plight.