Slavs
Slavs can be further grouped by religion. Orthodox Christianity is practiced by the majority of Slavs. The Orthodox Slavs include the Belarusians, Bulgarians, Macedonians, Montenegrins, Russians, Serbs, and Ukrainians and are defined by Orthodox customs and Cyrillic script as well as their cultural connection to the Byzantine Empire (Serbs also use Latin script on equal terms). Their second most common religion is Roman Catholicism. The Catholic Slavs include Croats, Czechs, Kashubs, Moravians, Poles, Silesians, Slovaks, Slovenes, and Sorbs and are defined by their Latinate influence and heritage and connection to Western Europe. There are also substantial Protestant and Lutheran minorities especially amongst the West Slavs, such as the historical Bohemian (Czech) Hussites.
Western Ukraine
Noticeable cultural differences in the region (compared with the rest of Ukraine especially Southern Ukraine and Eastern Ukraine) are more "negative views" on the Russian language and on Joseph Stalin and more "positive views" on Ukrainian nationalism. Calculating the "yes"-votes as a percentage of the total electorate reveals that a higher percentage of all (possible) voters in Western Ukraine supported Ukrainian independence in the 1991 Ukrainian independence referendum than in the rest of the country.
In a poll conducted by Kyiv International Institute of Sociology in the first half of February 2014 0.7% of polled in West Ukraine believed "Ukraine and Russia must unite into a single state", nationwide this percentage was 12.5.