Obeying orders has nothing to say. If you are not a soldier, you may not feel the meaning of this sentence. For soldiers, it is their bounden duty to obey orders, and military orders are like mountains. This sentence is really not just talk. If you don't obey orders, you can directly shoot your superiors in wartime. In peacetime, you should at least be a court martial, and your soldiers should at least be confined until you are ordered to retire.