Utilize the input text as a context reference, choose the right relationship between EU and European Union from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Under European Union rules they are supposed to apply for asylum in the first EU country they enter.

Answer: operator