NATO troops on Friday are set to end what has been the largest military exercise staged by the Western defence alliance since the end of the Cold War, aimed at deterring Russian aggression. A series of manoeuvres under the name “Steadfast Defender” was launched by NATO in reaction to the changed security situation in Europe resulting from Russia’s full-scale invasion of Ukraine more than two years ago. More than 90,000 soldiers from all 32 NATO countries as well as 50 warships, 1,100 combat vehicles and more than 80 combat planes have been involved in the exercise launched some four months ago…