When did Jews fall under Nazi Germany’s control?
Germany: 525,000 237,000 by 1939, so better than half had emigrated.
1939. The seizure of Czechoslovakia came as a surprise, but not the attack on Poland.
Czechoslovakia: 357,000 March.
Poland: 3,000,000 September. Roughly two-thirds; the others fell to the Soviets.
1940. All of these came as an astonishing surprise in a few months of war.
Denmark: 5,700 April. Most later escaped to Sweden.
Norway: 1,400 April. Most later escaped to Sweden.
France: 250,000 June in Occupied Zone; November 1942 in the rest of France.
Netherlands: 156,000 June.
Belgium: 60,000 June.
1941. All of these came as an astonishing surprise.
Greece: 73,000 April.
Yugoslavia: 68,000 April
Bulgaria: 48,500 Blocked the Germans from taking most Bulgarian Jews.
Albania: 200 April
European Russia: 2,525,000 June-December
Estonia: 4,560 June-December. Part of the Soviet Union from September 1939.
Latvia: 95,600 June-December. Part of the Soviet Union from September 1939.
Lithuania: 155,000 June-December. Part of the Soviet Union from September 1939.
Romania: 756,000 Murderously antisemitic in some places; not so much elsewhere.
Italy: 48,000 September.
Spain: 4,000 Portugal: 1,200 Sweden: 6,700
Switzerland: 18,000 Britain and the Palestine Mandate: 475,000
 On the one hand, possibly 1 million Polish Jews were added to the Soviet population in Fall 1939. On the other hand, many Jews fled or were evacuated eastward when Germany attacked.
 Italy tried to jump ship on Germany; the Germans fell on the northern two-thirds of the country like an avalanche.