This question was closed with the answer "No" on 3 August 2016 with an end date of 31 July 2016. Scores are based on forecasts made through 11:59pm Pacific in 30 July 2016. Article 4 was invoked by Turkey in 2015 in response to developments in Syria and by Poland in 2014 in response to developments in Ukraine (The Economist, NATO). Article 5 was invoked after the September 11 attacks in 2001 (NY Times). For more information on Article 4 and Article 5 of the North Atlantic Treaty, see NATO 1 and NATO 2. Recommended Questions Will any NATO member invoke Article 4 in response to actions taken by Russia before 1 January 2017? Before April 2016, will the French Army or Foreign Legion deploy combat troops to fight the Islamic State on the ground in Syria or Iraq?