You have got to be kidding me. Check out this pure-propaganda pronouncement, from the Pentagon's official news organ, the "American Forces Press Service":

Yeah, yeah. Water is dry, ice is warm, and up is down, too. This is entering into "Baghdad Bob" territory, folks. Seriously.
There are two possible interpretations of "Army stress" you could tease out of this pronouncement. The idea that longer tours will help with either is just silly.
This first is that longer tours will somehow ease pressures on the the service, institutionally.
Traditionally, the Army has tried to give its troops two years at home for every year in combat. Which means deployed units should only make up about a third of the force; the other two-thirds should be at rest or in training. But with the Iraq war dragging on so long, that hasn't been possible. "Today half the Army's 43 combat brigades are deployed overseas, with the remainder recovering from their latest deployment or preparing for the next one," Time recently reported. Now, you're telling me that more time in Iraq somehow help correct that imbalance? That doesn't even pass the laugh test.
"Army stress" could also be interpreted as the burdens that soldiers and their families face, as they head off to war, again and again. That's the kind of stress Gen. Odierno seems to imply will be helped by soldiers spending an extra three months in a warzone. Again, that's a downright laughable position to take. As Phil Carter, an Iraq vet, recently noted:
(High five: PC)