This day was created originally as "Armistice Day" after the "War to end All Wars" and people wanted to honor the veterans from that conflict. The Day was set as 11/11/11/11th. Or November which is the 11 month, the 11 day, the 11th hour and the 11th minute. The day was called "Armistice Day" until after WWII, it then was called "Veterans Day."
There are 3 holidays that honor the United States Armed forces,
We have Armed Forces Day that honors those that are serving
We have Memorial Day that honors those that died in service or those of us that crossed over to Valhalla or Fiddlers Green.
And Veterans Day to me traces its lineage to those of us that stood watch on the borders of our civilization since the days of the Romans standing watch on the Danube to guard the frontier so those of our people could sleep secure at night knowing that they were safe from the bad people. Veterans like me and those like me presented a blank check to Uncle Sam to write in any amount including our lives if necessary. We mustered out but we know many of us that didn't make it to this stage and that is where Memorial Day comes in and Veterans day honors those of us that did make it and this day honors us and those like us. It is a unique category because the Veterans in our society is a small segment like a warrior class and Veterans tend to come from family traditions, meaning that it is a father son, uncle cousins nieces, Aunts, moms kinda thing. This Day humbles me to a great degree because of what it means and I will honor those of us that crossed beyond the Rim. Our job as Veterans is to ensure that the traditions are not forgotten and passed on to the next generations.