The Couteau Delta Tactical Display is a French Air Force display team depending of the Escadron de Chasse 3/3 Ardennes which executes the different combat manoeuvres in front of the public in airshows. The team is equipped with two Mirage 2000D an dis based with its squadron at the Nancy-Ochey air base, it has been created at the end of the year 2016, as the Ramex Delta Tactical Display on Mirage 2000N of the EC 2/4 Lafayette was disbanded in order to prepare the coming withdrawn of the 2000Ns of the French Air Force while the 2000D is supposed to still in the French Air Force until the mid/late 2020s. The name of the team, Couteau Delta (or litteraly "Delta Knife"), comes from the historical call sign of the BA-133 of Nancy-Ochey and of a former display team of the same name on Mirage III.