lol Terry, this is an definately an Allied fighter, but not Mexican (they used American fighters anyway)
This Allied fighter saw combat in the European Theater.
It may not be something currently seen in the UK air museums as it's not too common these days and certainly wouldn't have been seen in Britain during the war (even though it is an Allied fighter)
Having entered service in 1944, it did see action over European airspace during the last year, but I was trying to avoid mentioning the Ost-front in specific