Answer:
What surrounds the world, yet dwells within a thimble?
If you spot one of these eastern warriors, they're not doing their job right.
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.
With sharp edged wit and pointed poise. It can settle disputes without making a noise.
The more of it there is, the less you see.
What did the piece of wood say when he saw the screwdriver and screws approaching?