Oh? Why? By the sound of it, the Balrog was outside the Chamber of Mazarbul for quite some time watching the Orcs' fruitless efforts against the Fellowship. When it went quiet, the Balrog walked into the room to see what was what. There'd been a deep voice to be heard outside the room, on or off, including after that big Orc-chief had been killed by Aragorn. The implication is that the owner of that mysterious deep voice was none other than the Balrog, and yet nobody in the room senses anything. Later, when it showed itself properly, wreathed in flame and with its power openly declared, they could sense its aura of power and terror from a distance that must have been tens of yards at least. So like other Maiar, it seems it can hide its power and with it, the fear. The fear comes from its power, that's the thing, it's all part and parcel.
3AM on a really dark night and you wouldn't even see a moving shadow.Now, you are saying that the Balrog could get inside by stealth: But how? The only way is that he'd sneek his way past the Gates, but even at night, the Guards will not miss a large shadow blotting the stuff behind it. Balrogs aren't ninjas, they can't turn invisible, and the Guards are not drunk on duty.
On the inside, Moria was evidently too complex to defend effectively. It's a city, not a fortress: once the enemy get in, it's game over in short order. That's what happened to Balin's expedition, they failed to hold the eastern gate and the Bridge against the Orcs.Like I said before, there is no mention of the Balrog ever entering the Upper Halls of Moria. For all we know, he stayed at the Lower Levels. Nain could have just sealed off the area by making a gate similar to the Hollin Gate. The skill of the Dwarves of Moria was at its peak when the Balrog was freed. If Sauron couldn't open a gate like the Hollin Gate, even with the power of the Ring, DB couldn't either. Nain could keep his precious little Kingdom.
Yes, one of the reasons but not the only one!But Nain went back and tried to fight the Balrog, for revenge, perhaps; but even if he didn't want to take revenge, the Dwarves had to get the Mithril back as they depended on it. I'm not saying that lack of Mithril was the main reason why the Dwarves left, but it was certainly one of the reasons.
I don't know why you are, either. We're told that Balrogs were the deadliest bane of Elves, except for the Dark Lord himself (i.e. Morgoth originally, and then Sauron). Dragons had notorious weak spots, their underbelly was vulnerable; Glaurung was beaten up by Dwarves, and mortally wounded by just one man. Smaug was brought down by one man, too. You're confusing size with power. It's not like Gandalf's physical form was big, was it?Ancalagon was said to be "the greatest defence Morgoth had". This means that he was certainly more powerful than the handful of Balrogs left with Morgoth. I don't know why I'm getting the feeling that this means that Dragons could be more powerful than Balrogs.
And yet you went and did it anywayI myself said that you cannot compare TFoG and LOTR. Perhaps you missed that point.
Because we're told so!If you think that a Balrog is powerful than any Dragon, state why you think so.