JERUSALEM (AP) — Palestinians will mark this year the 77th anniversary of their mass expulsion from what is now Israelan event that is at the core of their national struggle.

But in many ways, that experience pales in comparison to the calamity now faced in the Gaza Strip — particularly as President Donald Trump has suggested that displaced Palestinians in Gaza be permanently resettled outside the war-torn territory and that the United States take “ownership” of the enclave.

Palestinians refer to their 1948 expulsion as the Nakba, Arabic for catastrophe. Some 700,000 Palestinians — a majority of the prewar population — fled or were driven from their homes before and during the 1948 Arab-Israeli war that followed Israel’s establishment.

After the war, Israel refused to allow them to return because it would have resulted in a Palestinian majority within its borders. Instead, they became a seemingly permanent refugee community that now numbers some 6 million, with most living in slum-like urban refugee camps in Lebanon, Syria, Jordan and the Israeli-occupied West Bank.

In Gaza, the refugees and their descendants make up around three-quarters of the population.

Israel’s rejection of what Palestinians say is their right of return to their 1948 homes has been a core grievance in the conflict and was one of the thorniest issues in peace talks that last collapsed 15 years ago. The refugee camps have always been the main bastions of Palestinian militancy.

Now, many Palestinians fear a repeat of their painful history on an even more cataclysmic scale.

All across Gaza, Palestinians in recent days have been loading up cars and donkey carts or setting out on foot to visit their destroyed homes after a ceasefire in the Israel-Hamas war took hold Jan. 19. The images from several rounds of mass evacuations throughout the war — and their march back north on foot — are strikingly similar to black-and-white photographs from 1948.

Mustafa al-Gazzar, in his 80s, recalled in 2024 his family’s monthslong flight from their village in what is now central Israel to the southern city of Rafah, when he was 5. At one point they were bombed from the air, at another, they dug holes under a tree to sleep in for warmth.

Al-Gazzar, now a great-grandfather, was forced to flee again in the war, this time to a tent in Muwasi, a barren coastal area where some 450,000 Palestinians live in a squalid camp. He said then the conditions are worse than in 1948, when the U.N. agency for Palestinian refugees was able to regularly provide food and other essentials.

“My hope in 1948 was to return, but my hope today is to survive,” he said.

The war in Gaza, which was triggered by Hamas’ Oct. 7 attack into Israel, has killed over 47,000 Palestinians, according to local health officials, making it by far the deadliest round of fighting in the history of the conflict. The initial Hamas attack killed some 1,200 Israelis.

The war has forced some 1.7 million Palestinians — around three quarters of the territory’s population — to flee their homes, often multiple times. That is well over twice the number that fled before and during the 1948 war.

Israel has sealed its border. Egypt has only allowed a small number of Palestinians to leave, in part because it fears a mass influx of Palestinians could generate another long-term refugee crisis.

The international community is strongly opposed to any mass expulsion of Palestinians from Gaza — an idea embraced by far-right members of the Israeli government, who refer to it as “voluntary emigration.”

Israel has long called for the refugees of 1948 to be absorbed into host countries, saying that calls for their return are unrealistic and would endanger its existence as a Jewish-majority state. It points to the hundreds of thousands of Jews who came to Israel from Arab countries during the turmoil following its establishment, though few of them want to return.

Even if Palestinians are not expelled from Gaza en masse, many fear that they will never be able to return to their homes or that the destruction wreaked on the territory will make it impossible to live there. One U.N. estimate said it would take until 2040 to rebuild destroyed homes.

The Jewish militias in the 1948 war with the armies of neighboring Arab nations were mainly armed with lighter weapons like rifles, machine guns and mortars. Hundreds of depopulated Palestinian villages were demolished after the war, while Israelis moved into Palestinian homes in Jerusalem, Jaffa and other cities.

In Gaza, Israel has unleashed one of the deadliest and most destructive military campaigns in recent history, at times dropping 2,000-pound (900-kilogram) bombs on dense, residential areas. Entire neighborhoods have been reduced to wastelands of rubble and plowed-up roads, many littered with unexploded bombs.

Yara Asi, a Palestinian assistant professor at the University of Central Florida who has done research on the damage to civilian infrastructure in the war, says it’s “extremely difficult” to imagine the kind of international effort that would be necessary to rebuild Gaza.

Even before the war, many Palestinians spoke of an ongoing Nakba, in which Israel gradually forces them out of Gaza, the West Bank and east Jerusalem, territories it captured during the 1967 war that the Palestinians want for a future state. They point to home demolitions, settlement construction and other discriminatory policies that long predate the war, and which major rights groups say amount to apartheidallegations Israel denies.

Asi and others fear that if another genuine Nakba occurs, it will be in the form of a gradual departure.

“It won’t be called forcible displacement in some cases. It will be called emigration, it will be called something else,” Asi said.

“But in essence, it is people who wish to stay, who have done everything in their power to stay for generations in impossible conditions, finally reaching a point where life is just not livable.”

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Associated Press reporters Wafaa Shurafa and Mohammad Jahjouh in Rafah, Gaza Strip, contributed to this report.

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The Associated Press is republishing this story from May 14, 2024, to update with the ceasefire and President Donald Trump’s comments about the Gaza Strip.