US President Donald Trump on Tuesday proposed creation of a Palestinian state with a capital in eastern Jerusalem, dependent on Palestinians taking steps to become self-governing, in an effort to achieve a peace breakthrough in their decades of conflict with Israel.

Senior administration officials, briefing Reuters on the plan the president announced at the White House, said that under Trump’s proposed Middle East peace plan the United States will recognize Israeli settlements on the occupied West Bank.

In exchange, Israel would agree to accept a four-year freeze on new settlement activity while Palestinian statehood is negotiated.

“Today, Israel has taken a giant step toward peace,” Trump said as he announced the plan at the White House with Israeli Prime Minister Benjamin Netanyahu at his side, saying he also sent a letter about it to Palestinian President Mahmoud Abbas.

While Israeli leaders have welcomed Trump’s long-delayed plan, Palestinian leaders had rejected it even before its official release, saying his administration was biased towards Israel.

The absence of the Palestinians from Trump’s announcement is likely to fuel criticism that the plan tilts toward Israel’s needs rather than those of the Palestinians.

Israeli-Palestinian talks broke down in 2014, and it was far from clear that the Trump plan will resuscitate them.

US officials said they were braced for initial Palestinian skepticism but hoped that over time they will agree to negotiate. The plan places high hurdles for the Palestinians to overcome to reach their long-sought goal of a state.

It remains to be seen also how Israel responds, given the pressures its right-wing prime minister, Netanyahu, faces going into his third attempt at re-election in less than a year.

The US plan represented the most dramatic and detailed attempt to break the historic deadlock between Israel and the Palestinians in several years, the result of a three-year effort by Trump senior advisers Jared Kushner and Avi Berkowitz and former adviser Jason Greenblatt.

Trump has endorsed a proposed map outlining the two states, the officials said. The Palestinian state would be double the size of land that Palestinians currently control and would be connected by roads, bridges and tunnels, the official said.

Trump briefed Netanyahu and his rival in Israel’s March 2 elections, Blue and White Party chief Benny Gantz, in talks on Monday.

Before the Trump announcement, thousands of Palestinians demonstrated in Gaza City and Israeli troops reinforced positions near a flash point site between the Palestinian city of Ramallah and the Jewish settlement of Beit El in the West Bank.

A Netanyahu spokesperson said the Israeli leader would fly to Moscow on Wednesday to brief Russian President Vladimir Putin on the proposals.

Palestinian leaders had said they were not invited to Washington, and that no plan could work without them.

On Monday, Palestinian leader Mahmoud Abbas said he would not agree to any deal that did not secure a two-state solution. That formula, the basis for many years of frustrated international peace efforts, envisages Israel co-existing with a Palestinian state.

Palestinians have refused to deal with the Trump administration in protest at such pro-Israeli policies as its moving the US Embassy in Israel from Tel Aviv to Jerusalem, whose eastern half the Palestinians seek for a future capital.