Magento Store view URL with slash instead of underscore
We have different stores for 6 countries with 2 languages for each English and Arabic. So totally we have 12 store view. Everything works fine, but the URL of store http://example.com/COUNTRY_LANGUAGE to changed to http://example.com/COUNTRY/LANGUAGE. I am not sure how to achieve this, I know it is adding store in the URL after domain name. But I cannot setup store with slash(/).