Israeli Defence Minister Yoav Gallant said that once Hamas had been defeated, Israel would end its "responsibility for life in the Gaza Strip".
On Friday, Mr Gallant told a parliamentary committee that the first stage of the campaign was meant to destroy Hamas's infrastructure, according to a statement from his office.
The US and Egypt have reached a deal allowing some supplies to start bringing relief Gaza's 2.2 million residents.
An initial convoy of 20 trucks had been expected to enter southern Gaza through the Rafah border crossing on Friday, but they are still stuck on the Egyptian side.
Meanwhile Palestinian Authority President Mahmoud Abbas has confirmed that he will join several world leaders at a summit in Cairo on Saturday aimed at achieving a ceasefire.
The event, hosted by Egyptian President Abdul Fattah al-Sisi, will involve talks on trying to end the Israeli-Palestinian conflict based on a two-state solution.
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