Comfortable Americans have very little sense of how terrifying nationalist extremism can be.

No serious person who looks at Europe today can doubt that nationalist extremism is the main threat to its peace and security in the post-cold-war years.

Influential segments of the political, journalistic and literary world reverted to the nationalist extremism, with fascist and anti-Semitic tones of the 30's and 40's.

For the next two years, with nationalist extremism rising, the Kremlin clumsily tried to control both sides by hinting to them that Nagorno-Karabakh would be theirs.

Were he to dare to demand civil rights forcefully, he would immediately be accused of nationalist extremism.

What the allies must guard against, the Administration believes, are terrorism, illegal drugs, nationalist extremism and regional conflicts fueled by ethnic, racial and religious hatreds.

Moreover, we must prevent the use of what are referred to as minority languages for the purposes of nationalist extremism.

The biggest lesson from its recent history is that intolerance on the part of the majority, ethnic impatience and nationalist extremism can easily lead a region into conflagration.

A pro-European democrat won Serbia's presidential election on Sunday, allaying fears of a possible revival of nationalist extremism in the country.