[tremon]

Brussels is the seat of five governments: the city itself, the Brussels-Capital autonomous region, the Flemish Parliament and Government (luckily the Wallon Government seat is in Namur), the Belgian Federal Parliament, and the European Commission and Parliament.

The "Brussels" metonym is probably the most ambiguous reference to a government body on the planet.

[kuboble]

When discussed on an American tech forum, or even in Poland, it is fairly unambiguous though.