It was that tagline that sold me. I've visited a Society for Creative Anachronism event before but this is probably the first war I've had an invite to. You just have to shift your concept of war to encompass a camping weekend with dressing up and craft workshops and a full schedule of games. Think of it like a mashup of Meatballs and The Tudors.
Elizabeth I hired some privateers to bug the Spanish; the Spanish sent a lot of boats to attack England. That's my summary of the Anglo-Spanish War, which was the theme of the War of the Trilliums 2014 - familiarly, Trillies. Campers earned points for their team - Spain or England - by participating in different games and activities. For example, there was a prize for the dyeing of fabric. The goal was to make the best interpretation of popular colour of the period, known as Dead Spaniard. At the archery range, folk took aim at Elizabethan celebs advancing toward the line. Another game involved firing into a fracas of gorgeous ship-shaped targets and hoping you didn't make a friendly-fire faux pas. There were days' worth of games scheduled just at the archery range and some at night, to boot.
I have to say, I'm shamelessly unhip to TV, or I probably would have known a wildly inaccurate and sensationalized something about the period from that Tudors show but I got a nifty cursory history lesson through all this that made the 16th century seem pretty fascinating. There was no question, the fun these people have with history is massive. Nothing less than zeal would make people dress up in full armour to do full-on sword-swinging battle on a drippingly sweltering day in direct sunlight.