Star and Moon Threat
During this time, tens of thousands of demons were already preparing the marching onto the city, as they started gathering in something that could be some sort of formation if it wasn't that disorganized. However, it was still pretty good for a demon standard.
Demons were very thrilled at the thought of battle as they were brandishing their weapons and preparing for brutal combat. Already hundreds, if not thousands of them, were ready to combat and kill their sworn enemies, the humans, clearly not really thinking that rushing to the defenses right now would surely result in their death.
"Wait a bit... let the idiots get killed themselves. We will be entering with the first wave; the vanguard would probably be killed to the last person because humans are prepared."