More than two years after he first proposed a plan to revive the long-stalled Israeli-Palestinian peace process, US President Donald Trump's proposal is finally set to be announced.
It will likely address intractable issues that stymied peacemakers for generations, including the status of Jerusalem.
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While Trump and Israeli Prime Minister Benjamin Netanyahu are the closest of political allies, US relations with the Palestinians are at a nadir. Palestinian leaders refuse even to meet with the Trump administration, accusing it of pro-Israeli bias.
WHAT ARE THE KEY ISSUES?
* The status of Jerusalem, including historical sites sacred to Judaism, Islam and Christianity.
* Establishing mutually agreed borders.
* Finding security arrangements to satisfy Israel's fears of attacks by Palestinians and hostile neighbors.
* The Palestinian demand for statehood in the Judea and Samaria and the Gaza Strip.
* Finding a solution to the plight of millions of Palestinian refugees.
* Arrangements to share natural resources, such as water.
* Palestinian demands that Israel remove Jewish communities beyond the Green Line.
WHAT'S IN THE TRUMP PLAN?
The proposal is reportedly dozens of pages long but little has been revealed about its contents.
Palestinian and Arab sources who were briefed on the draft say it could be a prelude to Israel annexing about half of Judea and Samaria, including most of the Jordan Valley, the strategic and fertile easternmost strip of the territory.
Trump's son-in-law Jared Kushner, the plan's principal author, launched the first stage in Bahrain in June. It called for a $50 billion investment fund to boost the Palestinian and neighboring Arab state economies.
WHAT ARE ITS CHANCES?
The last Israeli-Palestinian peace talks collapsed in 2014.
The last two decades have also seen the rise to power in Gaza of the armed terrorist movement Hamas, which is formally committed to Israel's destruction and is in the midst of a decades-long power struggle with the western-backed Palestinian Authority, headed by President Mahmoud Abbas.
The elephant in the room is the two-state solution – the long-standing international formula to bring about peace by creating an independent Palestinian state living side-by-side with Israel.
The United Nations and most nations around the world back this blueprint, the foundation of every peace plan for decades.
The Trump administration has refrained from endorsing it. In November it reversed decades of US policy when Secretary of State Mike Pompeo announced that Washington no longer regarded Israeli settlements as a breach of international law.