Answer:
The 8 of us go forth and back to protect our king from a foes attack
I am a caribbean shape that makes ships disappear
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair.
If you've got me I'm everywhere. If you share me I'm nowhere. What am I?
I can be driven but have no wheels. I can be sliced but still remains whole
A little house full of meat, no door to go in and eat.