Quote Originally Posted by Wahrheit View Post
Without getting into the rest of this giant can of worms at the moment, Captains can leave their posts without permission because, well, they're Captains. When you're at the top of the chain of command, the only permission you need is your own.
As well, Masaru made it clear to his Division what he was doing. He didn't just disappear; he gave orders, then noted he was heading to the field of battle. The absolute wisest action? That's another discussion. But just randomly abandoning his post? Nope.