The North Atlantic Treaty Organisation (NATO) is a political and military alliance with a collective defence commitment enshrined in article 5 of its founding treaty, which extends to member countries only.
While the commitment under article 5 of the Washington treaty is unquestionably a significant attraction for nations aspiring to join the alliance, there are also real benefits to be derived for these aspirants and for wider Euro-Atlantic security from the process of democratic and defence reforms required in the preparation phase for NATO membership. These are clearly demonstrated (and assessed regularly) in the development of good governance, the rule of law and stability within all applicant countries.