User blog comment:Xilinoc/Ch. 573 (Let Unohana return plz)/@comment-3290324-20140319212559/@comment-5398287-20140325172201

Just want to bring up that Kenpachi is considered a Special War Power, someone who can turn the tide of this war - and he was labelled as such BEFORE his fight with Unohana. Not saying that justifies what happened to the latter, but when you're put alongside Ichigo (the ever-evolving racial hybrid) and Aizen (an immortal being who was only outdone by Yamamoto and Urahara in different areas) in terms of importance, it stands to reason that you need to become as strong as possible in order to turn the tide of battle. I readily admit that Unohana didn't need to die - she just had to kill Kenpachi and bring him back a bunch of times in order to break his restrictions - but their fighting in the first place did make sense to whatever degree. Also, Kenpachi didn't even MEAN to kill her, judging by how he cried like a little girl for her to come back upon realizing that impalement through the chest is a major sign of incoming death. Just saying.