Why do you think European and the United States government supported the creation of Israel in the late 1940's?

Explanation:

If you are a cynic, you might believe it was a guilty conscience. The allies did not even attempt to take note of what was happening in Europe.

Of course Germany was very thorough and very clever about how they gathered  their intelligence on how they knew who was Jewish and who was not. They simply sent their computer experts into a country they knew was next to be conquered and examined the voting records of that country.

People in the 30s trusted their governments and declared their religion.

After 1942 the Holocaust began in earnest. I've given you this snippet only to show you how dedicated Anti Semitism was in the early 40s. There were many instances of how the allies could have done something but didn't. They tried to make up for it by giving a part of Palestine after the war.

the psychological impact of incarceration

explanation:

a brief interference with a person's freedom of movement with a duration that can be measured in minute.