Typically for business travel. If you have to send your passport off to get a visa from an embassy, you might still have to travel to another country while wait

Typically for business travel. If you have to send your passport off to get a visa from an embassy, you might still have to travel to another country while waiting to get it back, for example. https://www.businesstraveller.com/features/apply-second-uk-passport/ https://www.businesstraveller.com/features/apply-second-uk-p...