See also: the Parsley Massacre in the Dominican Republic, which preyed on Haitians' inability to pronounce the word "perejil" as a native Spanish speaker would:
> The Haitian languages, French and Haitian Creole, pronounce the r as a uvular approximant or a voiced velar fricative, respectively so their speakers can have difficulty pronouncing the alveolar tap or the alveolar trill of Spanish, the language of the Dominican Republic. Also, only Spanish but not French or Haitian Creole pronounces the j as the voiceless velar fricative. If they could pronounce it the Spanish way the soldiers considered them Dominican and let them live, but if they pronounced it the French or Creole way they considered them Haitian and murdered them.
> The Haitian languages, French and Haitian Creole, pronounce the r as a uvular approximant or a voiced velar fricative, respectively so their speakers can have difficulty pronouncing the alveolar tap or the alveolar trill of Spanish, the language of the Dominican Republic. Also, only Spanish but not French or Haitian Creole pronounces the j as the voiceless velar fricative. If they could pronounce it the Spanish way the soldiers considered them Dominican and let them live, but if they pronounced it the French or Creole way they considered them Haitian and murdered them.
https://en.wikipedia.org/wiki/Parsley_massacre