because some countries want war more than others. Russia, Somalia and other underdeveloped countries.
Believe me, the country which took full onslaught of both World Wars despite having no real desire in participating in them is unlikely to want a war. Even Somalia is just lawless, so more like simple wild nature than a dedicated crowd of fanatics.
Let them kill each other rather than hurt civilized world with whatever they do. We should know better and be wiser than them.
Which is a form of self-satisfaction based on fairly simple demagogy method: substituting "I am better than the worst people of %nation%" to "I am better than people of %nation%". Sorry to disappoint but this works only until you are dragged into some shit without asking your subjective opinion about yours neighbourhood developmentness (which is, as it turns out, is totally irrelevant).
On another note, because people may be unaware of actual state of Russia and other slavic nations around: self-identification-wise Ukraine is half russians (and Crimea is even more so). There are tons of people with family ties. But the other half consider themselves european and the fact that they live within one border always was a cause for some tension -- people of seemingly one country are actually two different nations and want to live differenly. So (at least for now) there is no any "intervention" from Russia, we just trying to keep our own people safe in case of still possible civil war.
