WHICH COUNTRY AM I?

Good at building alliances,
Economic, war, or colonial.
Honors alliances and is a trusted partner.
Thinks that colonies and territories,
Are an extension of self.

Synonymous with fashion and romance.
Invented the invasive kiss.
Concubines are officially tolerated.
Houses famous artworks by great artists.
Home of world famous museum and tower.

Has more varieties of cheese,
Than the rest of the world combined.
A culinary destination extraordinaire.
Home of exceptional winemakers,
Wines that are found nowhere else.

Second official language of the world.
Some international bodies named in her language.
Houses the world’s educational, cultural, science, and art agency.
Haute couture is my nickname.
My fashion shows lead the world.

What is my name?