Curiously enough, Turkey is the only member of NATO for whom Article 5 ( automatic response in event of an attack on a member ) had to be explicitly extended:

Curiously enough, Turkey is the only member of NATO for whom Article 5 ( automatic response in event of an attack on a member ) had to be explicitly extended: http://www.nato.int/cps/en/natohq/official_texts_17245.htm http://www.nato.int/cps/en/natohq/official_texts_17245.htm on the territory of any of the Parties in Europe or North America, on the Algerian Departments of France, on the territory of Turkey or on the islands under the jurisdiction of any of the Parties in the North Atlantic area north of the Tropic of Cancer And interestingly that therefore makes it the only member for which there is a clear process for specifically revoking Article 5 protection.