not well atleast

even now one of the main purposes of government is to defend the people

Let me burst a bubble for you. What you have in your head about 'things' making people more powerful and being able to achieve things, are just imaginary power structures. What is really being done here but the re-arranging of duties in people's lives? This sacred thing you call 'government' is just made up of people pointed in a certain direction. We shouldn't limit ourselves to being controlled by this idea, but take it and realise it was the 'people' making this happen all along.

I understand the government is made by the people

it is made to defend and assist the people

Defence of what?

of the people inhabiting the land of the government

imagine

if there was an anarchist society

so

this means

no coherent military

no military funding or construction

now

if said society gets invaded

they are screwed

they cant produce enough to counter the enemy

actually

they could not produce at all

Anarchism is not a society or a system, it is just the negation of systems. People are free to achieve and cooperate much more than a petty government instruction.

yes

but having that eliminates the possibility of a military

due to a military is a government upon itself

Military is just like government. The status quo in social relations.

yes

so a military is effectively impossible in an anarchy

In the traditional sense, of course.

is there a non traditional sense?

Raiders.

Offence vs defence remember?

yes

but raiders are unorganized

And I still want to ask you, defence of what? Private property.

no defence of lives

People are property of the ruling class.

and ability to support the people

Slavery.

yes

but this is authoritarianism

no upper class

So in a sense government is the reaction against raiders to defend property of labour.