Forced assimilation is a process of forced cultural assimilation of religious or ethnic minority groups, into an established and generally larger community. This presumes a loss of many characteristics which make the minority different.
Ethnic assimilation
If a state or a government puts extreme emphasis on a homogeneous national identity, it may resort, especially in the case of minorities originating from historical foes, to harsh, even extreme measures to 'exterminate' the minority culture, sometimes to the point of considering the only alternative its physical elimination (expulsion or even genocide).
for more info:
http://en.wikipedia.org/wiki/Forced_assimilation
Ethnic assimilation
If a state or a government puts extreme emphasis on a homogeneous national identity, it may resort, especially in the case of minorities originating from historical foes, to harsh, even extreme measures to 'exterminate' the minority culture, sometimes to the point of considering the only alternative its physical elimination (expulsion or even genocide).
for more info:
http://en.wikipedia.org/wiki/Forced_assimilation