Georgraphy Quiz

This thing is a trivia question:

What country is closest {geographically} to the United States? -- other than Canada and Mexico, which actually touch us.* Answer to appear next week.

Send your answers to me at All persons submitting a correct answer will receive an all-expense paid week-long vacation for four on Martha's Vinyard.

Although I daresay the present Senate Foreign Relations Committee Chairman would deny they "touch" us.