I guess that everybody here at puzzling.stackexchange is aware of the fact that Uzbekhistan and Liechtenstein are the only two countries in the world that are doubly landlocked and hence share a very distinguished property.
The following list shows parts of some other country pairs that share very distinguished properties .(the properties are natural; no loopholes; no trick solutions).
- Italy and S????? are the only two countries that have property A.
- Switzerland and V????? are the only two countries that have property B.
- Ethiopia and L1???? are the only two countries that have property C.
- Saudi Arabia and L2???? are the only two countries that have property D.
- Mexico and L3???? are the only two countries that have property E.
- Ireland and N????? are the only two countries that have property F.
Solve for the six countries S?????, V?????, L1????, L2????, L3????, N????? (with the given initial letter) and the six properties $A, B, C, D, E, F$.