The largest minorities in the Czech Republic - namely Slovaks and Gipsies - essentially emerged due to immigration, even though only within Czechoslovakia and not until the end of the World War II. After 1989 also other new minorities arose, such as Ukrainian or Vietnamese, whose significance is developing rapidly.
In the beginning of millennium Czech Republic was a country with fastest growth in number of immigrants out of all developed countries (members of OECD). In the present Europe the problem is increasing in urgency particularly in the case of Muslims.
With these questions had to and still has to deal the Czechoslovakian and Czech state, legal order but also the security forces.