Can't stump Duke

Try this one:
The country Somalia contains the name of a different country, Mali. Think of a European country whose seven-letter name contains another country's four-letter name.

Thanks,Duke

Thanks to Duke we have the answer to our puzzle. My nephew Daniel got the one where you take the word 'sailor',add a letter and mix it up to make a word that has been a navigational help throughout history.The answer:polaris.
Here's the next problem:
A certain U.S. state of three syllables, when wedged between two other letters, results in a two-syllable word meaning"previous,bypast",and "inevitable,as a conclusion."

Help!

Okay,I found this contest in a magazine and the prize is a trip. The questions are hard. Can anyone get this one?
Each of the words below has a certain feature of note to an international traveller-every word,that is except one. Which is the odd one out in this set?
HESPERUS
ECHINACHEA
VAGABOND
INCUBATION
JELLYFISH
FORMALITY
I just don't get it.