Diffrence between "cooperate" and "associate".
Hello!
Do these two sentences have same meaning?

A: Polices should not cooperate with gangs.
B: Polices should not associate with gangs.

I might have trouble with diffrence of meaning between "cooperate" and "associate" .

Also, If I change #A sentence into below,

A' Gangs should not cooperate with polices,

will the meaning change?

Thank you for everytime.!

Question

Diffrence between "cooperate" and "associate".
Hello! 
Do these two sentences have same meaning?

A: Polices should not cooperate with gangs. 
B: Polices should not associate with gangs.

I might have trouble with diffrence of meaning between "cooperate" and "associate" . 

Also, If I change #A sentence into below,

A'  Gangs should not cooperate with polices,

will the meaning change? 

Thank you for everytime.!

Answer

It should be police not polices, as I think its already a plural similar to mice.

A implies that the police are pursuing a non-negotiation strategy with gangs, B implies that police should not fraternalise with gang members. A is a political strategy, B is more about the internal life of the police.

Answer

Cooperate means to work together.  Associate simply means to meet and spend time together.

"Gangs should not cooperate with police" is a totally different meaning.  In this case, it is the gangs who are performing the action, not the police.

Answer

All of you two guys give me the best answer. It was very helpful, thank you XD