Language wars exist for several political and social reasons:
1. Politicians and those in power often seek to promote the majority language of a nation to strengthen national identity, while minorities fight for recognition and use of their native tongue.
2. Issues around which languages are used officially, in government, education, and public life can deepen tensions between language groups.
3. Immigrants learning the dominant language may be a source of conflict, as seen in debates over language requirements for citizenship in some countries.