"Czech officials say the incident happened in late May near a small village known as Pelhřimovy, just across the border from Poland. They added that their diplomats immediately notified their Polish counterparts, and that Polish soldiers are "no longer" present at the site, which Czech nationals can again visit as they wish."
Ref: Minor Misunderstanding
Hey ! Stuff happens.
[For the record: Poor old DonDiego's Grandmother was of Polish extraction.]