Croatia
A 2011 survey revealed that 78% of Croatians claim knowledge of at least one foreign language. According to a survey ordered by the European Commission in 2005, 49% of Croatians speak English as the second language, 34% speak German, 14% speak Italian, and 10% speak French. Russian is spoken by 4% each, and 2% of Croatians speak Spanish. However, there are large municipalities that have minority languages that include substantial populations that speak these languages. An odd-majority of Slovenes (59%) have a certain level of knowledge of Croatian. The country is a part of various language-based international associations most notably the European Union Language Association.
Bosnian language
Bosnian is based on the most widespread dialect of Serbo-Croatian, Shtokavian, more specifically on Eastern Herzegovinian, which is also the basis of Standard Croatian, Serbian, and Montenegrin. Until the dissolution of SFR Yugoslavia, they were treated as a unitary Serbo-Croatian language, and that term is still used in English to subsume the common base (vocabulary, grammar and syntax) of what are today officially four national standards, although this term is controversial for native speakers, and paraphrases such as "Serbo-Croato-Bosnian" (SCB) or "Bosnian-Croatian-Serbian" (BCS) are therefore sometimes used instead, especially in diplomatic circles.