Use the Greek equivalent of K and M for Kosovo and Montenegro respectively.
They may look the same as the Roman letters, but they are actually different
unicode characters. Since the country names are used for sorting, those 2 countries (with a Roman letter at the beginning) would be sorted before all countries
that start with a Greek letter.
The problems I sometimes have to deal with... :)
We need to make sure that custom country names are processed by the
translation engine before they are used for sorting
added changenote