The Professor- Landlocked (Wikipedia)
A landlocked country is a country that does not have territory connected to an ocean or whose coastlines lie solely on endorheic basins. Currently, there are 44 landlocked countries, two of them doubly landlocked (Liechtenstein and Uzbekistan), and three landlocked de facto states in the world. Kazakhstan is the world’s largest landlocked country, while Ethiopia is the world’s most populous landlocked country.