This is a new one on me...
Amateur Radio Military Appreciation Day, also referred to as ARMAD and celebrated on May 24 this year, is an annual holiday on which amateur radio operators from around the world collaborate to allow members of various communities the opportunity to gather in public places (like a Walmart, public parks, or football game). Members of the community express their support verbally and in real-time, over a two-way radio for military members, and those who are affiliated with the military (veterans, coalition forces, first responders, and military support groups). Military members get to hear and feel the appreciation of the members of the community. It is an opportunity to express openly and verbally thank those at the frontlines.