She has a reputation that 'commands' attention/respect. [=people give her respect/attention because of her reputation]
In the United States, the President as the commander in chief is at the head of the military 'chain of command'.
She seems to be 'in (full) command of' the situation. [=she seems to have complete control of the situation]
(..) But you don't know what it is. That doesn't matter. You do. You will find little joy in your command. But with luck, you will find the strength to do what needs to be done. Kill the boy, Jon Snow. Winter is almost (..)2015 TvShow: Game of Thrones Title: Kill the Boy Season: 5 Episode 5