(8-1-14) So who's making mischief in Ukraine? Putin is the principal mischief maker because he's under domestic political pressure not to stop support for Russian paramilitaries.
Part of this is due to elections coming up next year in Russia. Putin is under pressure from Russian nationalists in Russia, which is his largest voting constituency, to continue funding Russian paramilitary operations in Ukraine.
The US State Department has't provided any weapons to Ukraine, since they havent even asked for any. They don't even need them at this point and the only money they have received so far has been from the European Union.
The only way there would be that kind of money going into Ukraine is if the United States had a vested interest in maintaining the conflict -- as is. The EU on the other hand is interested in bringing Ukraine under its realm.
NATO is not particularly interested in bringing Ukraine into its fold. NATO doesn't really have any policies of its own and it is a dilapidated military organization and only exists on paper for of defense coordination in Europe.