So you've met every aviator in the world, and they all speak 'perfect' English!
That's alright then!
I remember many years ago, in the days of TACEVAL, when we were playing the role of the defecting aircraft. We were given a Russian speaker as part of the plan, and the confusion caused when he made all our inbound radio calls in Russian, and 'didn't understand' any of the replies was a cause of considerable amusement - but also an indication of a possible problem if it ever happened for real.
Taking a Spanish speaker along when going out to find a Spanish FV with sick crewman on board was also generally very useful - although why we bothered I don't know, after all, I believe that the international language of the sea is English!