Hokuriku Proxy War (1977) (Kinji Fukasaku)
A Yakuza group from Osaka with dreams of national dominance moves into the snowy Hokuriku region, sparking a bloody turf war with local gangs.
For an excellent review, see DukeTogo84's review here:
https://www.blu-ray.com/movies/Hokur...2/#UserReviews.
Blu-ray.com also has a review by Jeffrey Kauffman here:
https://www.blu-ray.com/movies/Hokur...375242/#Review
And here are some some quick pix of the packaging:
and finally a trailer here: