Pause the video at 4:38s - now, I'm no flag expert, and you can't see all of it, but I've just had a good google and I can't find any flags with black and white stripes, and an iron cross, that aren't related to the 3rd Reich. I could be wrong.
Essentially you can be part of the Knights Templar defending Christianity against Muslims like the crusaders did centuries ago rather than being just a shaven headed, tracksuit wearing doley.
I know my history isn't my strong point, but didn't the KTs mostly ponce about in Europe kicking butt? Or was that an "active defence", taking the battle to the baddies before they could bring it to the homeland?
They were around for a few centuries so you can pick whatever you like on that. They were big in Malta along with the Knights Hospitaller, I was in Malta a holiday two years ago and there was loads of stuff dedicated to them.