Sothatexaminingintimetherelationofcommandstoevents，wefindthatthecommandcanneverinanycasebethecauseoftheevent，butthatacertaindefinitedependenceexistsbetweenthem。Tounderstandofwhatthisdependenceconsists，itisessentialtorestoretheothercircumstancelostsightof，aconditionaccompanyinganycommandissuingnotfromtheDeity，butfromman。Thatcircumstanceisthatthemangivingthecommandishimselftakingpartintheevent。
Thatrelationofthecommandingpersontothosehecommandsisindeedpreciselywhatiscalledpower。Thatrelationmaybeanalysedasfollows。
Forcommonaction，menalwaysuniteincertaincombinations，inwhich，inspiteofthedifferenceoftheobjectsaimedatbycommonaction，therelationbetweenthementakingapartintheactionalwaysremainsthesame。
Unitinginthesecombinations，menalwaysstandinsucharelationtooneanotherthatthelargestnumberofmentakeagreaterdirectshare，andasmallernumberofmenalessdirectshareinthecombinedactionforwhichtheyareunited。Ofallsuchcombinationsinwhichmenareorganisedfortheperformanceofcommonaction，oneofthemoststrikinganddefiniteexamplesisthearmy。
Everyarmyiscomposedofmembersoflowermilitarystanding—theprivatesoldiers，whoarealwaysthelargestproportionofthewhole，ofmembersofaslightlyhighermilitarystanding—corporalsandnon-commissionedofficers，whoarefewerinnumberthantheprivates;ofstillhigherofficers，whosenumbersareevenless;andsoon，uptothechiefmilitarycommandofall，whichisconcentratedinoneperson。