Switzerland has the 'lions share' of Italy's border.
Switzerland
*Border and Sicily is an Island off the coast of Italy... it's the football to Italy's boot.
Spain
No China and Russia do not share a border but they are not too far from each other. However they both share a common border with 14 countries.
Among the countries listed, Italy does not share a border with France. France shares borders with Spain, Germany, and The Netherlands, but its border with Italy is at the southeast, making Italy the only country in the list that does not have a direct border with France itself.
The following countries share a border with France: Belgium, Luxembourg, Germany, Switzerland, Italy, Monaco, Spain, and Andorra.
When countries share a border it is referred to as a "common or shared" border.
italys longest land border is with Switzerland
Belgium, Luxembourg, Germany, Switzerland, Italy and Spain share a border with France.
Belgium, Luxembourg, Germany, Switzerland, Italy, Monaco, Spain, Andorra are the eight countries that share a border with mainland France.
The countries that share a border with Argentina are:ParaguayBrazilBoliviaUruguayChile