Exercise can help 'combat' the effects of stress.
They have been 'combating' the rebels for months.
Some of these soldiers have never seen 'combat'.
(..) -I... I can't... I can't tell. -Hey, where's Lenny? -Right here, Woody. Oh, no, I can't bear to watch one of these again. Oh, no, it's a Combat Carl. What's going on? Nothing that concerns you spacemen, just us toys. I'd better take a look anyway. Why is that soldier (..)1995 Toy Story