Does Eoin Colfer have something against/for America? (I cant really decide which it is

But anyways, read the page, then read this to understand

There are only 7 major locations used in the series. Three of them are Ireland, Tara and London.
However, three of the others are Ho Chi Minh, Munich and Russia.
Ho Chi Minh is in Vietnam, which was invaded by the USA in the 70s.
Munich is in Germany, which was invaded by the USA in WW2.
Russia is the largest part of the former Soviet Union, which the USA was at a Cold War with for the second half of the 20th Century.
As for the final location, it was Chicago, in the USA itself! And who did Colfer choose to place there? Jon Spiro. An enemy!

And does this mean Colfer likes, or dislikes the USA? (Or neither - And im reading too far into it?
After all - Artemis went to each of these places, and won. In Russia, Germany, and the US, something bad had happened (ie. kidnap, robbery and evil-guy) - So Artemis solved the problem. In the same way the US did perhaps? Therefore, US are good

On the other hand - Perhaps hes drawing attention to how the US went to these countries in force? (In the same way Artemis did - After all, he took something from each country (ie. Russia = Father, Germany = Painting, Ho Chi Minh = Knowledge). And of course - Chicago being the source of Spiro
To be honest - I dont really think its either. There are a load of far better reasons to choose those locations, as explained on the webpage, so thats probably what colfer was actually thinking

Or he may just be interested in modern history, and chosen those locations, as he knew of them?
Who knows? Anyways - After this big post - Thoughts plz!