Tuesday Night Trivia, on Wednesday

I fell asleep last night before I could post anything. So here you go:

Imagine you're on an international road trip and you drive through four consecutive countries whose names (in English) all begin with the same letter. What four countries will you have driven through?

Hint/note: Depending on what you do with words like "Republic of," you could change "four consecutive countries" to "three consecutive countries" or "five consecutive countries."