Flag of Arad Doman - a flag from The Wheel of Time
Described in The Wheel of Time Companion as being "a silver hand grasping a silver sword by the blade, point down... on a field of four green and three blue horizontal stripes."

Sword from File:Long sword.svg - from the Open Clip Art Library, which released it explicitly into the public domain (see here)
Gauntlet from File:297th MI BN DUI.svg - as a work of the U.S. federal government, that image is in the public domain.
Vectorised by  Begoon from the description by Robert Jordan