Except for those deployed in combat, many men and women in the military and their families will celebrate the 4th of July with a long holiday weekend this year. Even those deployed will celebrate the 4th in some fashion.
The key is to be safe no matter what you do—especially those driving some distance away from home and back to their duty station.
This poster is from a collection of such located here. It's a World War One period version obviously, given the dates depicted (1776-1918). I like the way Uncle Sam is charging with bayoneted rifle in hand, while fireworks explode overhead. Not unlike what those in the trenches faced during that deadly war.