There has long been a site for US Militaria that is very popular with people collecting all sorts of bits and pieces of US military stuff and excluding anything not US. Now they have a spin off for anything military except US. It's a different kind of collector than the usual gun collect and shooter audience. But... I think it's worth a look because of people with a different perspective.
Be advised the images people post don't show up unless you are a registered member. That's a bit aggravating but its' as easy to join the site as any other messageboard.
https://www.worldmilitariaforum.com/forums/
New site for collectors of military whatever not US
Moderator: Niner