Board Thread:Manga/@comment-28980080-20170625174900/@comment-1327106-20170626074938

I think the Garrison would be the most likely source of transfers, but the Military Police could still take a hit. The Survey Corps never had a lot of people. I think 300 is the highest it's been?

There are about 2,000 of members of the Military Police as of the public info in Chapter 31, so if the Survey Corps took 50 (which they won't, because most MPs are still lazy boozers) it wouldn't affect their numbers much, even accounting for MP losses over the rest of the storyline. At 200 MPs per city, they would lose 2-3 people each. It's completely doable.

I just don't think Isayama would do that because making too many heroic MPs would ruin his ability to use them as a punching bag. :)  (I've noticed that he really likes using using MPs as annoying bureaucrats to be argued against. After Nile was revealed to be Erwin's friend, he started using other nameless MPs instead.)

Without the Walls needing to be maintained, I think the Garrison would probably be turned into a sort of standing army and the Survey Corps would take on a special forces/vanguard role.