европейских

европейских

"European" (adjective, relating to Europe).

Here 'европейских' modifies the plural noun 'странах', indicating its adjective form describing countries in Europe.

Я читал статью о европейских странах.

I read an article about European countries.

In this context, 'европейских' acts as an adjective in the genitive plural form, describing 'народов', pointing to the cultures of nations within Europe.

Культура европейских народов богата и разнообразна.

The culture of European peoples is rich and diverse.

The word 'европейских' here is a descriptive adjective in agreement with the plural noun 'традиций', signifying traditions associated with Europe.

Европейских традиций часто придерживаются в нашем городе.

European traditions are often followed in our city.