The formal basis for NATO-Ukraine relations is the 1997 Charter on a Distinctive Partnership, which established the NATO-Ukraine Commission (NUC). Successive governments reinforced the political dialogue and practical cooperation between NATO and Ukraine. NATO supports a range of initiatives in Ukraine, while Ukraine contributes to NATO’s missions in Afghanistan and Kosovo, and in 2013 became the first partner country to contribute to the NATO-led counter-piracy operation Ocean Shield.
Following recent developments, on 27 February 2014, NATO Defence Ministers stated that “a sovereign, independent and stable Ukraine, firmly committed to democracy and the rule of law, is key to Euro-Atlantic security.” This echoes a key point made in the 1997 Charter. Defence Ministers added that “NATO Allies will continue to support Ukrainian sovereignty and independence, territorial integrity, democratic development, and the principle of inviolability of frontiers, as key factors of stability and security in Central and Eastern Europe and on the continent as a whole.” – (taken from NATO website http://www.nato.int/cps/en/natolive/topics_37750.htm)