Where can I learn about origins of this octopus?

https://preview.redd.it/f702i630kctg1.png?width=800&format=png&auto=webp&s=ba350ee5cfb9c70d599c87d4dd4328ae3bcdc506

Hello Croatian friends! I have recently become obsessed with this coat of arms for the 95th Airforce Base Divulje. I want to know about it's origins. I am familiar with the symbology of the shield, I wish to know about sextuple-wielding flying octopus. It lives rent free in my head. I'm struggling to find more information about it. Do you know where I might be able to look or ask? Sources do not need to be in English.

Thank you for any help!