Answer:
In buckles or lace I help set the pace. The farther you go the thinner I grow.
I direct you from outer space.
Everyone has me and no one can lose me. What am I?
What gets sharper the more you use it?
I am a protector. I sit on a bridge. One person can see right through me, while others wonder what I hide. What am I?
I march before armies a thousand salute me. My fall can bring victory but no one would shoot me. The wind is my lover one-legged am I. Name me and see me at home in the sky.