Why?
Because as soon as an attacking force gets a attack point on a planet, the others have to claim that point back, by attacking their own base to clear it off from the original attackers.
Thats a so called counter-attack in the game.
However, most times counter-attacks happen to not have any opponents, meaning you attack a planet with no enemy, claim your point back and go home.
Yes its a type of defending (since you are claiming your point back from the attackers) but since its a much different action than actually defending it should be called Counter-Attack in the lower left pop up and not defend.
Because knowing that most of the time you are counter-attacking against no pilots, I would never click on that.
Either let me defend (knowing there IS an enemy to play against) or let me attack and win attack points.
Edited by TexAss, 12 December 2014 - 09:14 AM.