Uzbekistan has asked NATO for assistance in defense education, the alliance has said in the Secretary General's annual report :
Education is a key agent of transformation and NATO is using it to support institutional reform in partner countries. The Alliance’s education and training programmes, which initially focused on increasing interoperability between NATO and partner forces, have been expanded. They now also provide a means for Allies and partners to collaborate on how to build, develop and reform educational institutions in the security, defence and military domain. Defence education enhancement programmes have been set up with Afghanistan, Armenia, Azerbaijan, Georgia, Kazakhstan and the Republic of Moldova. In 2012, Iraq and Mauritania also began cooperating in this field with NATO, while Ukraine and Uzbekistan have requested assistance.
In terms of building up Uzbekistan's military capacity, this isn't going to do much: these sorts of institutional reform projects , while probably more productive in the long run, tend to be viewed skeptically by post-Soviet countries, who would much rather have "hard" tactical training or equipment aid.
So the significance of this is geopolitical. While that diverse group of countries (including Collective Security Treaty Organization members Armenia and Kazakhstan) should temper any sweeping judgments about what the geopolitical significance of this is, it's still an intriguing step by Tashkent. And as Uzbekistan has just left the CSTO, much to the consternation  of Russia, this will undoubtedly be viewed in the Kremlin as evidence of Uzbekistan's drift westward.