The eagles plan is cool, but it's not secret. The Fellowship can't ride eagles to Mordor because of the giant, flying snake-dragon monsters ridden by
However, the reason the Ringbearer did not fly to Mordor by Eagle is fairly simple: the purpose of the Fellowship of the Ring and the linchpin of the entire strategy decided on in Rivendell was to destroy the Ring in a mission of secrecy.
However, they were afraid of the men of the Vales of Anduin, who shot arrows at the Eagles (including the chief whom Gandalf saved) to keep them from stealing livestock. Therefore, the Eagles took the Company only a short distance.
Though someone could start out with good intentions, the Ring would eventually corrupt them. And that is why Gandalf can't touch it. He is afraid that if he did, it would corrupt him and make him just as bad as Sauron since Sauron put so much of himself and his evil into the One Ring.
Because of their intense love of the earth, the Ring does not sense hobbits as a threat, which is why they were able to be overlooked and complete the quest.
As for Sam, his resistance likely has to do with his innate goodness and loyalty. His love for Frodo helped him to overcome the pull of the Ring and his inner pureness was never fully pierced by the Ring.
Hobbits Proved the Most Unlikely of Heroes
Though Elves and Maiar had greater natural resistance to the Ring's effects, Hobbits possessed an inborn resilience to its primary means of temptation. In fact, they saved Middle-earth from Sauron precisely because they could fend off his influence better than most others.
It's a constant reminder to Aragorn of his family history; his hesitation to take the ring from Frodo Baggins (Elijah Wood) is a direct result of Isildur's corruption. Although Boromir ultimately falls victim to the seductive nature of the ring, Aragorn is able to defy his family history and resist his urges.
The Fellowship can't ride eagles to Mordor because of the giant, flying snake-dragon monsters ridden by One-Ring-sensing warrior kings and their half-mile-wide aura of fear.
Sauron Thought Frodo Was Just a Spy
Even though Sam has hold of the Ring, the Orcs could question Frodo and piece together what was going on. And Sauron is likely made aware of Frodo's intrusion, as the Mouth of Sauron (his loyal messenger) learns about the Hobbit and the mithril armor he carries.
As many have observed before, the interactions between Frodo and Legolas are severely limited in the trilogy even though they are allies. In fact, there's only one line that Legolas says to Frodo: “And you have my bow.”
Goblins are really, really dumb. They are dumb and inattentive but they were dealing with the dwarfs, Bilbo was out of sight among the rubble and hobbits are notoriously stealthy in the lore. Tolkien repeatedly references that a hobbit who does not wish to be seen, usually won't.
He's generally forbidden to use his powers to directly influence events in Middle Earth. He's supposed to be more of an advisor/cheerleader-type figure who helps the people of Middle Earth work to solve their own problems rather than them relying on divine intervention.
It is quite simple: Sauron did not expect, and could not conceive, anyone would actually try to destroy the Ring instead of claiming it for themselves. "He is in great fear, not knowing what mighty one may suddenly appear, wielding the Ring, and assailing him with war, seeking to cast him down and take his place.
Aragorn had given his word to the army of the dead to release them after the battle. Even though they could have easily overthrown Mordor and Sauron — but he knew that he was only as good as his word. He therefore had to uphold his word and free them.
He wasn't truly omnipotent, but his great power allowed him knowledge of many things within the realm. Sauron insisted that the Orcs refer to him as the “Eye” because he did not allow his name to be written or spoken. So when the novels describe the “Eye,” it very well may be a description of Sauron himself.
Frodo asks Gandalf to take the Ring, but the wizard refuses vehemently. With the Ring, Gandalf says, he would become too powerful, and he would inevitably be corrupted like Sauron himself. Even if Gandalf took the Ring simply for safekeeping, the temptation to use it would be too great.
Gandalf knew exactly where the Ring was, and who owned it. At any time he could've stepped in to help Bilbo destroy it if he did indeed confirm it was the One Ring. However, Gandalf would also have known how corrupting an influence the Ring can be. So he wouldn't have taken it himself, even if he had known earlier.
The Eagles of the Valar are huge, and that's an understatement. Not only would their flight above Mount Doom cause a stir in Sauron's forces, but there is no physical way for Gwaihir to drop the One Ring precisely into the Cracks of Doom.
In the film adaptation, however, Gandalf mentions the Blue Wizards but claims he doesn't remember their names. This is actually due to a copyright issue because the names of the Blue Wizards don't appear in the trilogy. In hindsight, another good reason was that maybe adding Radagast into the story was enough.
The Ring has not tempted everyone. While Gandalf and Galadriel were offered it and tempted directly, others are not. Strider, Gimli, Merry, Pippin, Sam, and Legolas were in the presence of the Ring for months and did not succumb to its influence.
Aragorn is not half Elf, although he is a descendant of Elros, who is half Elf (and the brother of Elrond, the half-Elf who raised him), which explains why Aragorn's life span is unusually long.
Hobbits are one of the weakest races in the LOTR universe. Most could be defeated by simply ruining their lunch. Hobbits are charming and valuable people but they aren't a very strong race.
Except for Tom Bombadil, nobody seemed to be immune to the corrupting effects of the One Ring, even powerful beings like Gandalf and Galadriel, who refused to wield it out of the knowledge that they would become like Sauron himself.
The Uruk-Hai are without a doubt the most strongest troops that the forces of evil have in The War Of The Ring. As a race of bigger and smarter Orcs, the Uruks were created by Saruman.