Got a comment? NATO’s Air Defender exercises, hosted by Germany over the course of 12 days, will see 10,000 service members from 25 countries taking part, but Canadian warplanes won’t be participating. CBC News published this video item, entitled “Germany hosting NATO’s largest ever air exercise” – below is their description. CBC News is the largest news broadcaster in Canada. It frequently collaborates with its French-language counterpart, Radio-Canada Info, although the two are organizationally separate.