(KCEN) -- Lt. Gen. Don Campbell is calling it a bittersweet good-bye as he prepares to relinquish command over III Corps and Fort Hood.
And after his reassignment, there will be some tough boots to fill on fort hood.
Campbell says the greatest challenge will be dealing with the wounds left behind by a decade of war and there are also those from the worst tragedy in Fort Hood history.
Campbell took command shortly after the 2009 shooting that killed 13 people and wounded more than two dozen others and he's watched as soldiers and families have struggled to recover and as new programs to support them have taken shape.
He said, "The scars were still here when I took command, and they remain today, and they won't go away. That was a difficult event."
Many people are now wondering just how long will the trial against the accused Fort Hood shooter take?
But Campbell says he has faith in the military's legal process.
He said, "Sure, I would have liked to have seen it go faster, but the process is working its way through the system the way it should, and I'm sure that at some point, the court martial will take place in the near future."
Maj. Gen. Mark Milley will come from Fort Drum to take over III Corps, if his nomination is approved by Congress.
So of course, he will inherit the difficult task of carrying on the efforts to help soldiers recover both from war and tragedy.