Guild war --how does "attacking a sector" start

[conqueror9]

I click another guild sector

view sector

i see there is a "seigh army" slot open
i use 10 of each iorn age goods to unlock it

then i place my army in

and
my army is there, nothing is happen ?

any 1 inform me, what is the next step
any key /button i press to start the "attack" ??

 

[DeletedUser2752]

You siege army is like your defensive attacking army. It just wastes 8 perfectly goods units that prove that you are the one attacking that sector. After you have placed your siege army, you now can select your normal army to attack with (and press the attack button)

 

[conqueror9]

thanks

finally i can launch 1 attack to see "how to attack a sector"