Note that previous summits of NATO, including the NATO summit held in Wales in 2014, also had expressed support for the territorial integrity and sovereignty of Azerbaijan, stressing that they support a settlement of the conflicts in the South Caucasus based upon these particular principles. They had held that use of force against territorial integrity or political independence of states or threatening by use of force is inadmissible and that internationally recognized borders of states must be respected.
http://en.apa.az/azerbaijan-politics/foreign-news/azerbaijan-s-territorial-integrity-supported-at-nato-summit-in-warsaw.html