Hard to answer this without mentioning spoilers, but he believed the threat by the king to be a bluff. Still, the isolated logic of declaring war on a kingdom that wants peace while being in possession of a seemingly world-ending power (the rumbling) doesn't make sense coming from him. It's unknown if he had an ulterior motive beyond that, but what we do know is that Willy is aware of the presence of enemies and spies. His speech was made to weed them out, especially Eren. The most dangerous ability is in the hands of someone who isn't bound by a peaceful will. It's also worth noting that Eren most likely believed that Willy was in possession of the War Hammer Titan, which is why he struck Willy first. This manga image below is just referencing Willy's speech messing with Eren.

It would've been cool if they showed that parallel in this episode but at least they showed a reaction in Eren's race so its all good. Nothing to actually complain, the adaptation so far is near damn perfect
Bruh I think this s*** crashed aniwatch
Who got a link to the new episode
THIS EPISODE! 
I f***ing called it that the fight will be blueballed at the end of this episode
Incredible episode
I f***ing called it that the fight will be blueballed at the end of this episode
I mean, it was kind of obvious. So far no episodes are not 30+ minutes. And they average 2 chapters per episode
Reiner voice actor went to work . Almost teared up
he said the thing
WARNING: Manga Spoilers
Keep moving forward 
That Rumbling tease
Did she not try to kiss this nigga in the end of season 2 ? Siblings do that ?
That’s not kissing bruh
the craziest s*** going on in AoT right now and niggas just wanna talk about Mikassa and Erens relationship
Hate to See It!
The studio was shipping them, but I guess the author has different intentions lol
How do I censor a pic?
!#link