Cyborg soldiers were predicted in the 1970's comic book "Deathlok the Demolisher". I always marvel (pun intended) at how closely the government stooge running the program looks like John Bolton of the USA government.

See Deathlok as he was intended (not the watered down version that returned in the 21st century):

https://readcomiconline.li/Comic/Astonishing-Tales-1970/Issue-25?id=61165#1 and subsequent issues.
Somehow I don't believe that Marvel will ever chronicle thse issues in the theater lol.