Uncle Sam's Promise
The event or issue is the VA wait. (Veteran's Affairs wait)
There are no real people in this cartoon.
Uncle Sam represents America, and the smaller guy represents a war soldier/veteran.
The opinion is that as soon as the wars are over, and the veterans need help, America turns their back on them, and doesn't want to help them.
I don't have enough information, because I've never seen reasons to either prove or disprove this.