If he is seeking asylum, then why has he travelled across various nations and seas to come here? Below is the shortest possible route he could have taken to Britain, which is most likely wrong because I doubt he flew here in the first place. In reality he has probably crossed through the likes of; Egypt, Jordan, Israel, Iraq, Turkey, Georgia, Russia, Ukraine, Czech Republic, Greece (if he has crossed the med sea), France, Germany or even Spain to get to here.

