All countries share borders, although these may not always be land borders. Australia, for example, shares no land borders with any other country, but it does have maritime borders with other countries.
Countries that share borders with other countries are referred to as "landlocked countries." Examples include Germany, which shares borders with nine countries in Europe, and Brazil, which shares borders with ten countries in South America.
Only England
Jamaica is an island and so it does not have borders with any other countries.
Spain has borders with Portugal, Andorra, Gibraltar (U.K.) and France.
China and Russia share borders with the most number of countries, each bordering 14 other nations.
I guess you mean if both countries do share borders with other nations. In that case, they do: the US also borders Canada and Mexico also borders Guatemala and Belize.
The Philippines does not share any land borders with other countries. It is surrounded by the sea and shares maritime borders with countries such as Taiwan to the north, Indonesia to the south, and Malaysia to the southwest.
4
Australia is the only country that is completely surrounded by water and does not share any land borders with another country.
The countries that share international boundaries with Israel are Lebanon, Syria, Jordan, and Egypt.
There are two landlocked countries in Africa that share borders with only one other country. They are Lesotho, which is completely surrounded by South Africa, and Eswatini (formerly Swaziland), which is bordered by South Africa and Mozambique.