If you're referring to World War II and Hitler's Holocaust on the Jews...
Hitler was against the Jews more as a race than as a religion. If a Jew practiced Christianity, it did not matter, they could still be taken to concentration camps, even if their families had converted generations ago.
Also, if the people still practiced Judaism, they would rather face the wrath of Hitler than the wrath of God for changing religions.
Jews practiced their religion quite openly during World War 1 in most countries where Jews lived. In Czarist Russia, there were some difficulties in practicing Judaism, but elsewhere it was not an issue. It was during World War 2 that being Jewish became an issue.
by the loss of 6 million Jews and
The religion in France during World War to was mainly Roman Catholic with the odd protestant group. Once Hitler encouraged the Jews to leave Germany (before the beginning of the 'Holocaust', the number of Jews in France increased.
most of the Jews within Romania's pre-war borders survived, but this was arguably at the expense of the Jews within the territories that Romania gained during the war.
Jews were persecuted in World War 2 by Adolf Hitler.
About 65,000 Jews were killed in Austria during the Holocaust.
Because religion fosters war and conflicts. There is no conflict between Jews and Muslims as such. There are conflicts that pit Jews and Muslims against one another, such the the Israeli-Arab and Israeli-Palestinian Conflict, there is no Holy War by either religion targeting the adherents of the other.
the catholic religion
The Jews migrated to Palestine after World War 2.
no, and you cant
nowhere.
they were not allowed to leave the ghetto.