Except, as the 'moot was explained to me, each realm is not necessarily compelled to answer the call to attack or defend. We are. Nice deterrent, that. 
Nobody asked D'Hara to join in. Sometimes, one's better off having their friends wait on the side, rather than playing all of their cards right away.
After all, had we joined in, then we couldn't act as a deterrent to others by threatening to join in! Allows for us to better prepare ourselves to get involved, too, instead of scrambling in and making fools of ourselves.
Fighting's bad for business, though, we'd rather everyone just give each other nice big hugs.
