Countries with Same Set of Bordering Countries

There are four pairs of countries that border the same set of countries: can you name them?
Border data from wikipedia
'Empty set' not considered!
Quiz by scambigol
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Last updated: September 25, 2014
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First submittedSeptember 25, 2014
Times taken54
Average score62.5%
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1st pair
Luxembourg
Netherlands
2nd pair
Bhutan
Nepal
3rd pair
East Timor
Papua New Guinea
4th pair
San Marino
Vatican City
+1
Level 90
Sep 27, 2014
This is a great quiz. You really have to think on this one.