The UK is attractive to migrants internationally for several reasons: it has strong historical Commonwealth and empire links to countries like India and Pakistan; it shares a common language with other English-speaking countries; it is an education hub with top universities; London is a global city; and as a stable member of the EU and MEDC, it provides economic opportunities. However, migration also presents challenges as evident in the influx of Polish migrants - while there are economic benefits to the UK, problems can arise from intervening obstacles and potential "trickle back" returns of some migrants to their home countries.