(Original post by vienna95)
a) if you could tell me the interest in their intervention in
b) whats wrong with national interest?
a) Germany - They could not allow Europe to remain fascist or to be taken over by the USSR. That would have been against the national interest of the US, not only for economic reasons, but also because a totalitarian Europe would have been a threat to the US
Kuwait - Had the US not stopped Saddam in Kuwait, his empire might stretch to Morocco today! He was on a campaign to conquer Arabia and perhaps beyond. That definitely could not be allowed, as the Middle-East is of capital importance to the energy supplies of the Western world.
Israel - Once Israel was created, the US had to make sure, it remained. In addition to the fact, that Israel is a useful sphere of influence in the Middle-East, the existence of Israel is part of the US national interest, because Americans have strong sympathy for the Jews (and indeed a large proportion of the US population is Jewish).
Kosovo - A destabilized Europe is always against US national interest and since no-one else was able/willing to intervene, the US had to save the day (again). By the way, apparently the very fact that the US got involved militarily is largely down to Wes Clark who did not always respect orders from the Pentagon. The administration was furious about this and he got sacked later.
So, it is possible, that in the case of Kosovo, the US got involved "by accident".
b) There's nothing wrong in acting according to your national interest, if there's nothing wrong with your nation. If you believe the US is built on morally sound values, than it is right for the US to act upon its national interest.