So far, despite a lot of hard work in some circles to get word out that morale is bad, the re-enlistment numbers for the National Guard haven’t dropped. In fact,
The Army National Guard, which has had the largest proportion of troops called up, has so far only lost ten percent of troops to attrition (not re-enlisting) among units returning from overseas. The normal rate of attrition, for all National Guard units, is 17 percent.
The quick article doesn’t note the overall percentage, so perhaps things aren’t as rosy as the ten percent figure would seem to indicate, but in any event things aren’t as bad as some people obviously wish they were.