The news on this post is kind of old but really interesting.
If you thought ape soldiers were only possible in the "Planet of the Apes" movie you were right but the soviet dictator Josef Stalin didn´t believe that as he tried to create an invincible army by crossing humans with apes, according to secret documents.

According to Moscow newspapers, Stalin told the scientist: "I want a new invincible human being, insensitive to pain, resistant and indifferent about the quality of food they eat."
Part of his terrifying plan was to use the mutants to work on railway construction, according to The Sun.

The scientist Ilia Ivanov was chosen to carry out the research and try to create the ape-men.
As you might know, no pregnancies resulted but the next stage was to implant human sperm in female gorillas.
Fortunately Ivanov was arrested in 1930 after his project failed and he died in a labour camp two years later.

>Thanks To: Sky News