In the vituperative letter "Crimes of Croatia" {Nov. 6}, Kosara Gavrilovic compared Croatia's president Franjo Tudjman to Hitler. Mr. Tudjman fought against Hitler from 1941 to 1945.

Serbian-dominated Yugoslavia passed the first antisemitic laws in October of 1940. Serbia was the only country in which the problem of Jews was "solved" by August of 1942.

Wartime Croatia, occupied by Hitler, had a law "that transformed into 'honorary Aryans' all Jews who made contributions to 'the Croat cause.' " Jews played an important role in the life of Croatia. Hannah Arendt was tempted to conclude, in this sense, "that assimilation in the East, when it was at all possible, offered a much better chance for survival than it did in the rest of Europe."

Croatians were no better off. Croatia was already devastated by Serbia before the war. In 1933, the English Review reported that "Croatia as a nation was to disappear in a short time. ... Not a single Croatian life is safe today; the murders are announced in the official press and in the lists of so-called proscribed and are carried out in a shameful manner and in presence of the police."

Gen. Draza Mihailovic's wartime program encompassed objectives such as "the creation of a Great Yugoslavia and within it of a Great Serbia, which is to be ethnically pure ... the cleansing of the state territory of all national minorities and a-national elements ... cleansing the Moslem population from Sandjak and the Moslem and Croat population from Bosnia and Herzegovina."

Except for the Jews, of all the peoples in Yugoslavia only the Croatians had fewer people (9.2 percent) after the war than before.