Vow Renouncing War

Lore & Background

Centuries before the narrative begins, King Fritz fled the mainland with a portion of the Eldian population after a devastating war. Consumed by ancestral guilt over Titan atrocities, he retreated to Paradis Island and constructed the three massive Walls. Using the Founding Titan's power, he issued an unbreakable command: no future monarch would ever declare war or use Titans for aggression. This vow was not just legislation but a mental block that overrode any royal successor's will, rendering them incapable of even considering offensive strategy. The consequences were catastrophic. While the outside world industrialized and developed anti-Titan weaponry, Eldia remained trapped in medieval stagnation. The Royal Government maintained this isolation through propaganda, claiming Marley was an undefeatable enemy. This enforced ignorance allowed the memory of the outside world to fade into myth, leaving the population vulnerable when the Colossal Titan breached Wall Maria.

In Their Own Story

The throne room fell silent as the young king gripped the scepter that commanded gods. His hands did not shake from fear of death, but from the crushing weight of a promise sealed in blood and regret. 'We shall never raise a sword again,' he whispered to the empty hall, his voice echoing with a finality that felt like a tomb sealing shut. Outside, the wind howled against the stone giants guarding their prison—a constant reminder that peace had been purchased at the cost of freedom. He looked down at his people sleeping in ignorance, wondering if their safety was worth the price of their souls.

Reader's Guide

The Vow Renouncing War serves as the central philosophical and plot-driving conflict for the series' first three seasons. It represents guilt taken to a destructive extreme, where one leader's remorse becomes an entire nation's prison. This vow explains why the Royal Government remained passive during the fall of Wall Maria; they were literally unable to mobilize military defense against the Titans. It also created the ideological rift that forced the Scout Regiment to operate as a rogue faction, defying royal orders in pursuit of survival and truth.

Did You Know?

• The vow was so powerful it prevented King Fritz from even forming offensive thoughts or strategies against Marley.
• Grisha Yeager had to use coercion and manipulation to force Queen Frieda Reiss to temporarily set aside this vow before she could be killed.
• This ideology is the primary reason why the Scouts Regiment operated as a rogue faction for so long, as the Royal Government was legally forbidden from supporting their offensive expeditions.
• The vow effectively made the Founding Titan useless for defense unless the user was willing to break the pact with the rest of the royal bloodline.