The Book of War — the construction of Ram Setu, Vibhishana's surrender, the great Lanka war, the slaying of Kumbhakarna, Meghanada, and ultimately Ravana himself. The eternal triumph of Dharma over Adharma.
यतो धर्मस्ततो जयः — Where there is Dharma, there is Victory
Yuddha Kanda (युद्धकाण्ड), also called Lanka Kanda, is the longest Kanda with 128 sargas. It is the grand climax of the Ramayana — the ultimate cosmic battle between the forces of Dharma (righteousness) led by Ram, and the forces of Adharma (ego, desire, tyranny) led by Ravana. Every event in the previous five Kandas was building toward this magnificent, cosmic resolution.
Key events of the sixth Kanda
Ram's army reached the southern ocean. Vibhishana — Ravana's righteous younger brother — defected and surrendered to Ram, who welcomed him and crowned him the rightful king of Lanka. Ram prayed to the Ocean God (Samudra Dev), who appeared and advised that the divine architect Nala could build a bridge as his stones would float through Ram's divine grace. The Vanara army built the Ram Setu — a 100-yojana bridge across the ocean — in just 5 days. The stones floated because the Vanaras wrote "Ram" on them. This bridge is referenced in modern satellite imagery as Adam's Bridge.
The war was fierce and devastating. Ravana's generals fell one by one: Dhumraksha, Vajradamshtra, Akampana — all slain by the Vanara warriors. Ravana's son Meghanada (Indrajit) — the most dangerous warrior who had once defeated even Indra — used the Brahmastra and rendered both Ram and Lakshmana unconscious. Hanuman flew to the Himalayas and brought the Sanjeevani herb to revive them. The celestial physician Sushena used it to restore both brothers to full strength.
Kumbhakarna — Ravana's enormous brother who slept for months at a time — was awoken to fight. He was a mountain of a demon who consumed vast armies in a single sweep. Even he, though powerful, knew Ravana was in the wrong, and said so before the battle. Ram and Kumbhakarna engaged in a fierce duel. Ram severed his arms, legs, and finally his head with celestial arrows. Even as he died, Kumbhakarna attained moksha by falling toward Ram's feet.
The final battle between Ram and Ravana was cosmic in scale. Ram used the Brahmastra arrow — given by Sage Agastya, energized by Vayu, fire, sun, and the two Ashwini Kumaras — and shot it straight through Ravana's chest. Ravana fell, and all of creation trembled with the impact. Vibhishana wept over his brother. Ram consoled him: "There is no enmity beyond death." Ram performed Ravana's funeral with full honors — acknowledging him as a great scholar of the Vedas despite his failings. Ravana attained liberation through Ram's arrow.
Ram was reunited with Sita. Vibhishana was crowned King of Lanka. Ram, Sita, Lakshmana, Hanuman, Sugriva, and the entire Vanara army boarded the Pushpak Vimana — the divine aerial chariot — and flew home to Ayodhya. Ram called out all the important sights of their 14-year journey from the sky to Sita. Bharata, who had been living in Nandigrama counting every day, rushed to receive Ram. Ram Rajya was established — the golden reign begins. The entire universe rejoiced.