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]
(..) - Anything you need? - No, thank you, Hillary. - Don't you stay up too late. - I won't. Alpha team, cover the front. Wait for my command. We are in position, awaiting your order. Bastards! Bloody hell! On the left! (..)2001 Lara Croft: Tomb Raider