Originally Posted by
nerfedname
I don't think that's the case. One doesn't need a certain number of defensive structures to get a shield. The only requirements are that greater than 1/3rd (or 30%?) of an army was used, and that the destruction was greater than 30%.
Defenseless accounts got screwed because one can often take them down without using 1/3rd of an army (again, cause they have no defenses).