Redirect language

I am currently trying to redirect visitors from the root of my website based on their language and location.

currently I am trying this by adding the following code to the _redirects file but this is not working.

/ eu/ 302! Language=de
/ eu/ 302! Country=de

Does anyone know how I can fix this.

The website is

Any help is greatly apprieciated.

this is nothing for hugo

Google can help