Europhile

 Longman Dictionary of Contemporary English Online朗文当代英语 5++LDOCE Online朗文 5++Eu·ro·phile /ˈjʊərəʊfaɪl/ noun British English  a politician who strongly supports the EU (=European Union) and believes that the UK should become more closely united with other European countries

Eu·ro·phile nounSyllable  

Europhile
Eu‧ro‧phile /ˈjʊərəʊfaɪl/ noun British English
a politician who strongly supports the EU (=European Union) and believes that the UK should become more closely united with other European countries