In 'The Last Debate,' the leaders of the various free peoples of Middle-earth gather to discuss their strategy against the looming threat of Sauron. This chapter serves as a pivotal moment in the narrative, showcasing the unity among the different factions, despite their historical rivalries.

The chapter opens with Aragorn, Legolas, and Gimli arriving at the stronghold of Gondor, where they join Gandalf and other leaders including Théoden of Rohan and Denethor, the steward of Gondor. Tension fills the air as they realize that Sauron's forces are preparing for a massive assault on Minas Tirith. The council convenes in a war room, where they express their concerns about the power of the Dark Lord and the fate of the One Ring.

Aragorn, embodying the hope and leadership required in dire times, advocates for a bold strategy. He emphasizes that while the One Ring must be destroyed, they cannot wait passively for Frodo and Sam to succeed in their mission. Instead, they must draw Sauron's attention away from Mount Doom to give the Ring-bearer a chance to complete his quest. This notion of a distraction becomes central to their plans.

The leaders debate fiercely about the best course of action. Some, particularly Denethor, are filled with despair and doubt. He believes their chances of success are slim and that they are already doomed. However, Gandalf counters this pessimism, reminding everyone of the necessity of hope and courage in the face of darkness. This clash of ideologies illustrates the broader theme of the struggle between hope and despair that runs throughout the narrative.

As the debate progresses, it becomes clear that unity among the factions is crucial. They decide to march on the Black Gate of Mordor, intending to confront Sauron’s armies directly. This decision serves a dual purpose: it will provide a distraction for Frodo and Sam while also rallying the forces of Middle-earth to stand against evil. The leaders agree to call upon all available forces, including the Riders of Rohan and the remaining soldiers of Gondor.

The chapter concludes with a sense of urgency and determination. The leaders reaffirm their commitment to the cause, and their resolve sets the stage for the climactic battles to come. 'The Last Debate' encapsulates the themes of leadership, sacrifice, and the power of unity against overwhelming odds, making it a significant turning point in the saga of 'The Lord of the Rings.'