Which border separates Brazil and Argentina?

Which border separates Spain and Portugal?

How many US states border the Gulf of Mexico?

The last town on the Karakorum Highway in Pakistan before the Chinese border is:_________?

Which border separates Colombia and Panama?

What is the name of the border between India and Nepal?

Goldsmid Line is the border between

What is the name of the border between Egypt and Israel?

Which border separates France and Italy?

The Curzon Line was a proposed border between which two countries?