It didn't matter, because the Protestant armies had Catholic mercenaries and the Catholic armies had Protestant mercenaries.

这无关紧要,因为新教军队中有天主教雇佣军,天主教军队中也有新教雇佣军

耶鲁公开课 - 欧洲文明课程节选

Swiss were great, famous mercenaries fighting in these armies.

瑞士雇佣军人在这些军队中声名显赫

耶鲁公开课 - 欧洲文明课程节选

So, maybe these are Protestant mercenaries.

这些可能是新教雇佣军

耶鲁公开课 - 欧洲文明课程节选