Order of Defense
The Order of Defense is a Society-wide order. It is one of the four major peerages. Holders of this award are recognized for significant skills in rapier and/or cut and thrust combat.
Awarded by the Crown, the order bestows a Patent of Arms and the members are titled Master or Mistress of Defense (often shortened to MOD) or other ethnic or linguistic variation. In addition, they are entitled to wear a badge of (tinctureless) three rapiers in pall inverted tips crossed, on a white livery collar. Because this peerage was newly created in 2015, a common term for associates has not yet evolved in the Society. In the East Kingdom, the Masters of Defense have taken to calling their associates "Provosts" in keeping with the practices of the London Masters of Defense, and marking them with a blue livery collar.
The badge of the Order, with clarifications.
A listing of the Masters of Defense on the An Tir wiki.