User blog comment:Forrestib/History/@comment-3257939-20140516053155

Oobleck was probably referring to the ignorance of knowledge which lead General Lagune to defeat, just like Blake said. But yeah, I feel like something important happened back then and now, the same thing is going to happen again. The narrator said something similar, something big is coming and humanity has forgotten the ashes of the war and those histories now called legends.

Similar to Attack on Titan, they believe they are at peace, just wait for it.