Answer:
The Jewish population had dropped significantly after WW2 but I'm sure you can find estimations of Jews post World War 2 if you focus on a certain country. Poland for example had the most Jews before WW2 with over 3 million and reduced to 45,000 after WW2. After the war, the Soviet Union had the most Jewish Populace holding 2 million Jews.
If you like to learn about military history I suggest learning about legendary Generals/ field marshals like:
-Bernard Montgomery
-George Patton
-Erwin Rommel
-Heinz Guderian
-Chester Nimitz
-Douglas Macarthur
-Gregory Zhukov
As a military historian, one should not see who these field marshals were fighting for but how they fought and what tactics did they use. One good example to justify this, Erwin Rommel a German Field Marshal was respected by George Patton and Bernard Montgomery even though they were fighting each other. Erwin Rommel had also gone against the discrimination of Jews and minorities and helped POWs after battles.