Under pressure from Donald Trump to end the two-year-old war, Netanyahu is facing a backlash from ultra-nationalist allies whose opposition to the US president's Gaza proposal could force the Israeli leader into early elections.

Netanyahu has embraced Trump's 20-point plan to end the war, which calls for Gaza's demilitarization and rules out any future governing role for Hamas, though it allows its members to remain if they renounce violence and surrender their weapons.

Hamas also responded positively, partially accepting Trump’s plan, saying it was ready to negotiate the hostages' release and would be part of a "Palestinian national framework" as Gaza's future is addressed.

But the idea that Hamas could still exist, let alone be in a position to continue discussing the Gaza plan after hostages are released, enraged Netanyahu's right-wing coalition partners.

"We cannot agree under any circumstances to a scenario in which the terrorist organization that brought the greatest calamity upon the State of Israel is revived," said National Security Minister Itamar Ben-Gvir.

"We will in no way be partners to that," he said in a post on X after the Sabbath, threatening to quit the government.

If far-right ministers believe Netanyahu has made too many concessions to end the war, his ruling coalition -- the most right-wing government in Israel's history -- could collapse a full year before the next election, which must be held by October 2026.

But insisting on more war in Gaza would antagonise the families of hostages still held by Palestinian militants in Gaza, and could further alienate a war-weary Israeli public as well as Israel's international allies. 

Continued conflict could also extinguish Israeli hopes that more Arab and Muslim states like Saudi Arabia or Indonesia could join the Abraham Accords, a set of US-backed agreements that normalized relations between Israel and several Arab states.

Expanding the Accords has been a priority for Trump as his administration pursues its own interests in the Middle East, but Riyadh has made it clear it will not normalize with Israel until the Gaza war ends and there is a path to Palestinian statehood.

Trump has called for Israel to stop bombing Gaza so talks on his plan can play out, starting with indirect negotiations between Israel and Hamas in Egypt's Red Sea resort of Sharm el-Sheikh on Monday for the release of all remaining hostages. 

Netanyahu sees the plan starting with the release of hostages in exchange for Palestinian prisoners. Of the 48 hostages remaining in Gaza, 20 are believed to be alive. A second phase would focus on disarming Hamas and demilitarizing Gaza.

But on Saturday, Finance Minister Bezalel Smotrich said that pausing attacks in Gaza was a "grave mistake". He said that over time this would erode Israel's position as it pursues its aims of freeing the hostages, eliminating Hamas and carrying out the demilitarisation of Gaza.

Ben-Gvir and Smotrich, whose parties hold 13 of the Knesset's 120 seats, have long pushed Netanyahu to pursue sweeping, seemingly unattainable goals in Gaza. If both were to leave the government, it would likely trigger an election.

Israeli government spokesperson Shosh Bedrosian told reporters on Sunday that the military had stopped what she said was certain bombings but that there was no ceasefire in place.

The military would continue to act for "defensive purposes", she said. Despite Trump's call to halt the bombing, Israeli strikes on Gaza over the weekend killed dozens of Palestinians.

Netanyahu has framed the plan as a joint effort that advances the government's goals, which include Hamas' surrender and Israeli security control in Gaza and its perimeter.

But Trump's plan lacks details, including any sort of time frame for Hamas to disarm. A vague reference to Palestinian statehood is also likely to infuriate Netanyahu's far-right allies.

Israeli pollster Mitchell Barak, who worked for Netanyahu in the 1990s, said he believed that the government was nearing its end, though he did not expect an immediate collapse given that the opposition supports the Trump plan while Smotrich and Ben-Gvir have few options other than staying aligned with Netanyahu.

Opposition leader Yair Lapid has offered to lend the government support to prevent it from collapsing in order to see through Trump's plan. Lapid on Sunday said Netanyahu could agree to an election date, offering "insurance" from what he called the prime minister's "extremist and irresponsible partners."