Ralph Peters is not to be trusted. He endorsed Clinton over Trump: http://www.realclearpolitics.com/video/2016/11/07/ralph_peters_im_voting_for_hillary_clinton.html
The subject is the Christian holiday of St. Stephen the first true compared to the Muslim definition.
In some European countries, notably Germany, Poland, Belgium, the Netherlands and the Nordic countries, 26 December is celebrated as a Second Christmas Day.
Wow! Thanks for posting that link. I had no idea.