I've recently posted an answer on http://worldbuilding.stackexchange.com/questions/36731/would-gorillas-with-human-level-intelligence-make-effective-soldiers/36733#36733
Judging by the many, many comments I received a lot of people did not generally agree with my opinion, which is fine. This was not a [tag:hard-science] question, and my answer was not meant to pass academic review - it was just a science fiction type question.