
"The die has been cast. We're going for the full conquest of the Gaza Strip – and defeating Hamas," local journalists quote a senior official as saying.
The families of hostages fear such plans could endanger their loved ones, with 20 out of 50 believed to be alive in Gaza, while polls suggest three in four Israelis instead favour a ceasefire deal to return them.
Many of Israel's close allies would also condemn such a move as they push for an end to the war and action to alleviate a humanitarian crisis.
Within Israel, hundreds of retired Israeli security officials, including former heads of intelligence agencies, issued a joint letter to US President Donald Trump on Monday, calling for him to pressure Netanyahu to end the war.
One of the signatories, ex-domestic intelligence agency chief Ami Ayalon, told the BBC that further military action would be futile.
"From the military point of view, [Hamas] is totally destroyed. On the other hand, as an ideology it is getting more and more power among the Palestinian people, within the Arab street around us, and also in the world of Islam.