Alligator, Yes the tool I carry for fire is the same I use for skinning and such. A good fixed blade knife will rendor wood to fire usable sizes. You can break wood down to 18 " leverage breaking it between two trees then baton theknife thru it to split it down to get to the dry inner wood. No ax or saw needed.
I do carry a pocket chainsaw in a can. It is the size of a skoal can but can be invaluable in shelter building.{NOT the cheap wire saws