President Trump signed an executive order last week ordering construction to begin on the Mexican border wall that became one of the primary symbols of his campaign, and at least one American ally thinks he is making a good decision.

Israeli Prime Minister Benjamin Netanyahu tweeted his support for Trump on Saturday, noting his own country’s success with such a wall.

“President Trump is right,” tweeted Netanyahu. “I built a wall along Israel’s southern border. It stopped all illegal immigration. Great success. Great idea.”

Israel built the wall in 2013, and it has indeed cut the flow of illegal immigration into the country. The southern border wall was constructed after Africans from Sudan, Ethiopia, and elsewhere began fleeing their home countries in search of refuge to the north. The Netanyahu government, suddenly besieged with tens of thousands of potential refugees who were driving up crime rates and putting an expensive burden on the healthcare system, had no choice but to take decisive action. Their no-nonsense approach helped them avoid the fate of Germany, France, and other European countries, where Muslim immigration is taking a severe toll.

Of course, the United States does not need the support or permission of any foreign country to proceed with measures of self-perseverance, despite what Democrats believe. It’s nice to have Netanyahu on our side, but it’s largely irrelevant. President Trump understands that. It’s embodied in his America First principle: We’re going to do what we have to do. If the rest of the world doesn’t like it, tough.

And let’s not pretend like this is the first time a U.S. president has been criticized by other global leaders. All we heard during the latter half of the Bush administration was how much the rest of the world suddenly hated us. How they were mocking us. Barack Obama was so concerned about this worldwide perception that he went on an apology tour in the first days of his presidency – as though we desperately needed the world’s approval. We didn’t. We don’t.