After two long horrible years of death, destruction, and trauma, this weekend Israel and Hamas finally silenced their guns. This was the first step in implementing phase one of what will hopefully become what President Trump has called it: a true and lasting peace deal. The moment marked the initial step toward ending a devastating war and unimaginable human suffering. For the families of hostages finally being reunited, this moment brings relief that has been too long delayed. For the Palestinian people in Gaza, it offers hope that the relentless destruction and death will end, and they can begin to rebuild their lives and their nation.

But relief alone is not peace. Hope alone is not justice. And implementation of the first phase in a 20-point plan does not make its fulfillment inevitable.

If you have been following Israeli-Palestinian relations for any stretch of time, you would be forgiven for having some skepticism about what happens next. We remember that President Trump put forth a 20-point plan at his White House meeting with Prime Minister Netanyahu (but without the involvement of any Palestinian voices) last month. As of now, the Israeli government and Hamas have agreed only to the first phase of this plan. And while this first phase mandates the end of the war, the release of Israeli hostages and Palestinian prisoners, and a surge of aid, it does not define a viable structure for how Gaza will be governed or rebuilt. Nor does it provide for the entry of the International Security Force envisioned in the 20-point plan to take over security responsibilities from Hamas forces.

There is cause for worry that Trump’s deal may unravel at the end of phase one. That would leave Gaza split into two: the urban and beachfront areas of Gaza from which Israel has withdrawn will continue to be governed by Hamas and will lack the resources to begin reconstruction. And the remaining 53 percent of Gaza will remain under Israeli occupation, and Israeli forces would likely resume periodic attacks against what they identify as Hamas infrastructure.

This is a recipe for disaster. The clearest lesson of the October 7 attacks is that Netanyahu’s previous approach to Gazans—locking them up beyond a series of barriers and eschewing any genuine peace process—was not only a moral failure but also a strategic one. The use of military force alone, without diplomatic efforts to deal with any of the core issues of the Israeli-Palestinian conflict, meant that the grievance and anger of the Palestinian public continued to grow. And no barrier, no matter how large, high-tech, or sophisticated can hold a people back forever.

So how do we avoid getting stuck at the end of phase one?

The same way we got to phase one: coordinated and unyielding international pressure on Israeli and Palestinian leaders. Trump’s 20-point plan did not emerge ex nihilo at the White House last month. It was a repackaging of ideas that had been circulating in official and track-two negotiations for at least a year, including from the recent French-Saudi plan.

The White House plan crystallized in the wake of Israel’s failed attempt to assassinate Hamas officials in Qatar in early September. That’s when administration officials started working earnestly with the Qataris to put an end to the war.

Trump did what he does best: He put the squeeze on Prime Minister Netanyahu to agree to the plan, and he made clear that any Israeli violations of its spirit would not be tolerated. The Qataris—along with other regional leaders—applied similar pressure to Hamas leaders.

This deal, as limited and fragile as it is, opens a door that has been shut for far too long. That door could, with a great deal of effort, lead to a genuine peace based on the establishment of a Palestinian state in the West Bank and Gaza. But for us to walk through that door, we need to see Israeli and Palestinian leaders execute on their commitments and continue to agree to a program that can create a better future for their peoples—even when that progress is at odds with their own political interests.