This is an old image series by uberis on DeviantArt.
The Treatment by Uberis
How to deal with those pesky supersoldiers that keep harassing you? Relax, we got you. Unfortunately some information is [CLASSIFIED]. This is partly to DA censorship being what it is, but also due to the fact that the [REDACTED] organisation wouldn’t want me to expose their trade secrets.
Disclaimer: Don’t try this on anyone other than a supersoldier. They are probably not immortal enough.