Galaxy Clicker for Android/iOS (iPhone/iPad).
Peace Shield has no effect on Space War Invasion.
The more Space Hordes you defend against, the better rewards you receive.
Hordes will not attack you it you have tailed 2 times.
Once this happens, you can reinforce the Cities of other allies.
If all allies fail twice, then this Alliance Activity is over.
You can only participate once per Alliance activity.
