The military of the United States is deployed in more than 150 countries around the world, with approximately 170,000 of its active-duty personnel serving outside the United States and its territories.
Keep in mind that administrative jobs do deploy, just not quite as often as combat or combat support jobs. The average Army deployment rate can range from 12 months deployed, followed by 12 months at home station assignment, to 12 months deployed, 24 months at home.
When Jay Agg signed up for the US Marine Corps after the 9/11 attacks, he knew he risked being severely injured, perhaps losing limbs. He knew he might even lose his life.
Yet, much to the surprise of many civilians, when his service came to an end in 2006 and he hadn't served in a combat zone, Mr Agg was sorely disappointed.
Some might imagine that soldiers who don't get deployed breathe an enormous sigh of relief, pleased that they are remaining on safe soil, far from danger.
But that is rarely the case - and it's one more reason why many servicemen and women feel deeply misunderstood.
In the Vietnam era, dodging the military draft wasn't uncommon. Young men fabricated injuries, rushed into marriages or moved to Canada to avoid fighting and possibly dying in the bloody Asian conflict.