Countries have a gender too
Like every noun, a country is masculine or feminine. Most countries ending in -e are feminine. Most others are masculine. A few are plural, so they take les.
- la France, la Suisse, la Côte d'Ivoirefeminine
- le Canada, le Sénégal, le Marocmasculine
- les États-Unis, les Pays-Basplural (the United States, the Netherlands)