WARNING: CONTAINS GRAPHIC DETAILS

Unit 731 was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that engaged in lethal human experimentation and biological weapons manufacturing during the Second Sino-Japanese War (1937–1945) and World War II.

The unit is estimated to have killed between 200,000 and 300,000 people.

Marks Unexplained World Podcast

Description & Credits

www.hauntedresearchcentre.com
www.frightnights.co.uk
---
Credits...
Photography by Helen Poolar
---
Marks Unexplained World background music:
Music by Adi Goldstein - Blank Light
Music from #Uppbeat (free for Creators!):
https://uppbeat.io/t/adi-golds...
License code: C6W9MMXFLSZUXLLO
---
Paranormal Research Centre Promo:
Music by Kevin MacLeod - Gathering Darkness
Music from #Uppbeat (free for Creators!):
https://uppbeat.io/t/kevin-mac...
License code: ATHMPVKBDSRGQIUY
---
Fright Nights Promo:
Music by AK - Sky High
Music from #Uppbeat (free for Creators):
https://uppbeat.io/t/ak/sky-hi...
License code: SMVBCSQXP5FFNVJT
---