You are closest to the country you are in. Any other answer requires knowing where the person asking the question is located.
Cuba
name one county that is close to alabama
Australia is the closest country to East Asia!
Canada
Lira
The country closest to the Tasman Sea are Australia & Tasmania
Closest airport to pretty much anywhere can be found at www.angloeuropean.com Just type in your city, pick the country if there are multiple citites with that name, and it will give you your closest 8 airports.
The second country closest to Japan is South Korea, located across the Korea Strait, a 200 km wide channel. The closest country is Russia, located about 10 kilometers between Soisho-to island and Hokkaido.
Cuba is the closest Caribbean country to New Providence
The closest country to Bermuda is the United States. Specifically, the state of North Carolina is located closest to Bermuda, approximately 650 miles away.
Korea is the closest to japan
Mexico is the closest country south of the US, as it borders the US to the south.