mils department steps authority Measures cubits unit power addition extension appendix hectometers kilometers offshoot command set division ell Feet wing circle affiliate decameters part meters projection block branch subsidiary sector side affix arm angstroms expansion Criteria faction decimeters seconds section attachment millimeters adjunct yards force group bulge inches microns clique detachment addendum minutes coterie knots blocks protrusion Miles supplement rods protuberance prolongation annex leagues centimeters furlongs fathoms segment