Military attackers refuse to work with police (6,5)

I believe the answer is:

strike force

I'm a little stuck... Click here to teach me more about this clue!

'military attackers refuse' is the definition.
I know nothing about this answer so I can't judge whether this works.

'work with police' is the wordplay.
'work' becomes 'strike' (striking is a kind of working).
'with' means one lot of letters go next to another.
'police' becomes 'force' (the force can refer to the police force).
'strike'+'force'='STRIKE FORCE'

'to' is the link.

Can you help me to learn more?

I've seen this clue in The Mirror.

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