Delicious has a lot more international articles, probably because using Google here narrows the results down to mainly American articles. Both engines returned links to the NYTimes and the article about the Crimea currently stirring up trouble between Russia and the Ukraine. Other than that most of the articles are different, Delicious has a lot of blog pages and some lesser-known links that might be good for in depth research. Google, on the other hand, turned up mostly news articles and a couple of comprehensive articles used for research. Overall I would personally put my trust in Google's results as they are more tailored to what I would need if I just wanted to learn about the current conflicts in the Ukraine.
Screenshots:
Delicious:
Google: