President Barack Obama said during a press conference in Britain Friday that the U.S considers it a major national security issue that there is uncontrollable migration into Europe.

“What happens in Europe is going to have an impact in the United States,” Obama said. “We consider it a major national security issue that you have uncontrolled migration into Europe. Not because these folks are coming into the United States, but because if it destabilizes Europe, our largest trading block, trading partner, it’s going to be bad for our economy.”

He continued to say, “if you see divisions in Europe, it weakens NATO.”

Obama continued to answer another question on migration and Europe.

“We’ve got some divisions and difficulties between the southern and northern parts of Europe that’s created some strains. I think the migration crisis amplifies a debate that is not only taking place in Europe, but the United States as well.”

The president added, “At a time of globalization, at a time when a lot of the challenges that we face are transnational as opposed to just focused on one country, there is a temptation to just pull up the drawbridge either literally or figuratively. We see that played out some of the debates that have taken place in the U.S presidential race.”