Board Thread:Manga/@comment-5774380-20161007195718/@comment-30142915-20161009114716

Tausendberg wrote:  But I have a bit of a hunch that King Fritz was bluffing. Eldia and Marley are seperated by a vast body of water, and I think there's no mentions of Titans (as huge as they are) being able to cross sea.

 There's also the question of how to get the Titans out of the Walls in the first place. You know, if the millions of Titans are to be released at once, they would have to  stomp across  the populated inner districts in order to be outside of Wall Maria. I know the manga once mentioned that the Walls are "hollow", but does it mean its inner space is large enough that it can act as a tunnel for the Titans to exit in an one-by-one manner? (eg. Blow an hole on the Walls, and make the Titans exit from that hole.)

 Hence, you aren't alone in that bit of a hunch.