15,000
NO, Israel was the name for the Jewish people. According to Judaism, when the Messiah comes, he will create a state which will be called Israel, it will be roughly where mortal gentiles thought that they had the right to call their state 'Israel', but this happened after the Holocaust.
Yes, many people tried to survive the Holocaust.
The Holocaust was the attempted extermination of Europe's Jews. About six million were killed during the Holocaust.
1
937,000 people
Around 30 ed's were killed in the holocaust
There was no Russian Holocaust, presumably you mean the Holodomor.
1,0000
2
500,000
yes
Yes, but not many.