To complete this logic puzzle, you'll need basic knowledge of country trivia.
You'll also need to keep your wits about you.
"Adjacent" refers to neighboring cells, including diagonally. Countries belong to continents according to general Sporcle standards (i.e. Russia is European). All countries are referred to by their Sporcle-standard names (e.g. Cote d'Ivoire, Timor-Leste. Note that there are no countries starting with 'the')... by definition, an "island nation" has zero land borders. Cardinal directions, i.e. North/West/East/South refer to geographical locations, not locations on the board.
Thanks to skuban for all the help and inspiration! Check out the walkthrough (in source)! Thanks to Zak6009 for his comments!