To be in the EU, it means to have same rules of... for economy, for social life, to be together in the majority of European countries.
Following the Second World War, we are a country of one ethnicity. After the moving of the borders, after the tragedy of the Holocaust and the murder of Polish Jews, we don't have large minority groups.
We are a strong democratic country.
And I think to be in NATO for the countries of our region, it means more guarantees for us, it means more responsibility for our common security, but it means fulfillment of all standards of civilized world, like protection of human rights and democratic mechanisms.