code: public static String getDisplayCountry(String localeID, String displayLocaleID) {
          return getDisplayCountryInternal(new ULocale(localeID), new ULocale(displayLocaleID));
      }
docs: <strong>[icu]</strong> Returns a locale's country localized for display in the provided locale.
  <b>Warning: </b>this is for the region part of a valid locale ID; it cannot just be the region code (like "FR").
  To get the display name for a region alone, or for other options, use {@link LocaleDisplayNames} instead.
  This is a cover for the ICU4C API.
  @param localeID the id of the locale whose country will be displayed
  @param displayLocaleID the id of the locale in which to display the name.
  @return the localized country name.