How do you behave when you yourself have authority? Would you stop respecting social norms and expectations if you did, and go on an egomaniacal power trip?
Because in our system, if you were to accumulate enough authority it wouldn't be in your interest anymore to follow laws.
In practice, your village can come to an agreement with other small villages and do military exercises together while still maintaining autonomy, and you can then maintain complex weapon systems and large armies.
I don't believe that, any link? City states are not anarchic nor are tribes.
You'd still have a bunch of people thinking you are a jerk - the reason your life might quickly become horrible is because you've been a jerk to pretty much everyone by claiming that you need to rule them by force.
(Edited to a more general statement.)