Or it shows the success of redirecting the flow of illegal immigration from land to sea. We've seen that migrants shifted their routes, no longer traveling greatly by land, but now traveling greatly by sea. Of course, Hungary being a land-locked nation doesn't have to worry about these migrants which travel by sea unlike Italy. But, unlike Hungary and like Italy, the United States does not have only a land border to care about. It has a significant coastline as well (one guarded by the Coast Guard - whose budget Trump isn't exactly increasing).The success of the Hungarian fence in reducing monthly illegal immigration to the low hundreds illustrates walls work.