I was being repeatedly attacked by someone significantly larger than I, so I joined GDI to keep him from chain attacking me. Even though I am going broke paying the GDI fee, he is still able to attack me freely.

We are on the Primary Server, I have 765 acres, he is 2359 acres, I am 62k networth, he is 252k networth...

What gives, how is he still able to attack me? What am I paying thousands per turn for?