What if the United States annexed Windsor, much like Russia did to Crimea?

Well Late Show host David Letterman posed the question to former U.S. President Jimmy Carter, Monday night on his show.

Carter and Letterman discussed tactics taken by Russian President Vladimir Putin in the annexation of Ukraine’s Crimea. The pair also spoke about Carter’s stance on Russia’s invasion of Afghanistan in 1979.

But before the segment ended, Letterman brought out the comedy chops and posed this “what if?” question.

“If the United States decided they wanted Windsor, Ontario, which is just right across the river from Detroit. We went up there and sent our tanks in could we get away with that?” Letterman asked Carter.

With a chuckle Carter said, “I doubt that the people in Windsor would approve”.