President Trump’s government recently announced more than $560 million in aid cuts to Honduras, Guatemala and El Salvador—the Northern Triangle—in a bid to pressure them to slow the flow of migrants to the U.S.

But the plan faces a grim economic reality: aid isn’t nearly as vital as the billions of dollars in remittances sent home by migrants in the U.S.

That gives thousands of poor farmers here in a vast region of tropical forest and farmland in southern Honduras a strong incentive to migrate in search of better wages and economic stability. And it gives the Central American governments little incentive to stop them.