A comitatus is the relationship between a king (or Lord) and his retainers in Anglo-Saxon times. You will often find this term used in a lot of old literature such as 'Beowulf'. It is pretty much a relationships between a position of power/ importance and their retainers, and in defining corresponds with our answer.
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The climax part is characterised for being the peak tension of the story, there is where all plot points lead to. So, most cases climax happens after a crucial decision or action is made by the main character.