JERUSALEM

There is nothing like going to a very different part of the world to get a fresh perspective on an intractable policy problem. In recent months, both of us have been focused on President Trump’s nuclear diplomacy with Kim Jong Un. Will he succeed in his bold gambit of offering economic and security benefits in return for lasting peace with North Korea?

The United States tried something similar with the Palestinians — and keeps on trying, with the White House working on the latest “peace plan.” The Oslo peace process, which began in 1993, offered Palestinians a deal: In return for recognizing Israel and ending the armed struggle, they would get a state of their own. To sweeten the deal, the United States and its allies showered the Palestinian Authority with assistance. Since 1993, the Palestinian Authority has received more than $31 billion in direct aid.

We saw some of the fruit of that aid — along with remittances from Palestinians abroad — when we visited Ramallah, in the West Bank, as part of a trip organized by a nonpartisan group called Academic Exchange. The Palestinians’ de facto capital is full of gleaming new buildings, including a high-rise hotel where we met with Palestinian officials. Per capita gross domestic product among the Palestinians has more than doubled — from $1,200 in 1994 to $2,900 today.

Economic aid has helped to grease the skids for security cooperation between the Palestinian Authority and Israel, but it hasn’t brought peace any nearer. No Palestinian leader has been willing to sign a “final status” accord that would resolve contentious issues such as the status of Jerusalem or Palestinians’ claims to a “right of return.” Even if the relatively moderate authority leadership were willing to compromise, it would not alter the radicalism of Hamas, which bombards southern Israel with “fire kites” and rockets from its Gaza base. (We saw the result — blackened fields — along Israel’s border with Gaza.)

Hamas’s unremitting hostility toward Israel has turned the Gaza Strip into an economic basket case, because, in return, Israel blockades its borders. And yet neither Hamas nor Fatah has ended the conflict — because, as a veteran Israeli peace negotiator pointed out, opposition to Israel is such an integral part of Palestinian identity. Palestinian leaders have never known a day when they were not struggling against the Jewish state, even if only rhetorically. They are not ready to make the difficult sacrifices needed for peace. Israel, under a right-wing government, isn’t ready to sacrifice, either. It has its own victimhood narrative, doesn’t trust the Palestinians and is in thrall to the settlers’ lobby.

North Korea is another relatively new polity whose identity was forged in opposition to external enemies. Since 1948, the Kim family has claimed the right to rule as the defenders of the Korean proletariat against the American “feudalists” and “imperialists” and their “lackeys” in Seoul.

Trump promises to make North Korea “very rich” if it gives up its nuclear weapons and missiles. There has been talk of a peace treaty and extension of U.S. diplomatic recognition to Pyongyang. But if Kim takes this “historic deal,” he would not only have to give up the weapons that ensure his own survival. He would also have to give up the ideological raison d’être for his regime — the rationale that justified decades of suffering by the North Korean people.

There have been visionary leaders, such as Mustafa Kemal Ataturk, Deng Xiaoping and Mikhail Gorbachev, who have wrought such dramatic transformations. But Gorbachev serves as a cautionary example for Kim: By attempting to liberalize the Soviet Union, he destroyed the state — and his own hold on power.

We know that Kim is a tough, ruthless autocrat who is willing to kill his own relatives. Could he be a transformational leader, too? It’s true that, having been educated in Switzerland, he knows how much better life is in the West. No doubt he would like his kingdom to become more prosperous. To achieve a relaxation in sanctions and enhance his own legitimacy, he is happy to hobnob with world leaders, including Trump. But no one should consider him serious about denuclearization unless he first provides a complete declaration of his nuclear program, much of it covert. So far he hasn’t done that. Instead, he’s actually improving his nuclear research facility.

Thus, we have not seen any evidence that Kim will prove any bolder or more courageous than the Palestinian leaders in seeking peace. Unelected autocrats cannot easily afford to dissolve the ideological glue holding their ramshackle regimes together no matter how many riches we dangle before their eyes. When it comes to both the Palestinians and North Korea, the best we may realistically hope for is to manage the conflict — with Hamas, for example, perhaps agreeing not to rocket Israel, and with Kim perhaps agreeing to scale back his nuclear arsenal. The “deal of the century” that Trump seeks to “solve” each of these problems is likely to remain out of reach.

Max Boot, a Post columnist, is the Jeane J. Kirkpatrick senior fellow for national security studies at the Council on Foreign Relations and a CNN analyst. Sue Mi Terry is senior fellow for Korea at the Center for Strategic and International Studies and an MSNBC contributor.

Read more:

The Post’s View: Trump’s bet on a North Korea summit is looking riskier than ever

The Post’s View: Israel falls into Hamas’s trap

Eugene Robinson: The Trump-Kim summit is still a good idea

Jason Greenblatt: Does Hamas have the courage to admit failure?