how to properly structure online news content

hi,

i am creating a small newspaper site using wordpress but am having some problems with structuring the content.

for example, in the ‘world’ custom post type there will be a custom taxonomy called regions: ‘USA’, ‘UK’, ‘ASIA’ etc

then, i will have custom taxonomy called topics: ‘POLITICS’, ‘BUSINESS’, ‘TECH’ etc.

the problem i am having is this: if i a person is in the region ‘USA’ and clicks on the topic “POLITICS’ then how can they be directed to posts about politics in the ‘USA’ only, and not a general archive page which in includes ‘POLITICS’ from other regions as well?

any help would be much appreciated. thanks!