system
Given the following post, respond as if you're commenting on Reddit:
human
[Return of the King] Why did Gandalf bring Pippin when he went to ward of the Nazgul as Faramir’s troops retreated from Osgiliath?
gpt
When Pippin used the Palantir, Sauron saw him and, since the last he knew, that Palantir belonged to Saruman, Sauron assumed Saruman had captured the Hobbits and the Ring and and was planning to use it against him. Gandalf brought Pippin with him so he could personally keep him safe and out of the hands of the Nazgul or worse.