I was thinking about the time line were the allies get the A-bomb early in the war and use it against Germany. If the Germans wanted to respond to such an attack their only mass killing weapon at the time was nerve gas. So say Hitler is so shock by a atomic attack he forgets about the bad time he had in WW1 and orders an attack by V2 loaded with nerve agent on London.
V2 rockets were first used in Sept. 1944 and by December an average of four or five V2's hit London every day in 1944. So using this number of attacks with the 2000 lbs. payload of a V2 and the Pentagon study that found it would take 220 pounds of nerve agent ( sarin nerve gas home made type) to kill 500 people in an open area.
Works out like this:
V2 would kill 4545 people per attack.
4545 people dead per V2 x 5 V2 attacks per day = 22,725 dead a day
22,725 people dead a day x 1 week = 159,075 dead a week
159,075 people dead a week x 1 month = 636,300 dead a month
London population 1939 = 8,615,245 live people
It would take the Germans 13.5 months to kill every single person in London with V2 load with nerve agent. If they bombed 5 times a day every day. Sunday too.... Not sure it would be moral to attack on Sunday, but hey they are Nazi's so lets say they attack on Sundays too.
366 days in a year x 5 V2 attacks = 1830 V2 rockets.
So Germany would need 2,025 V2 rockets with 4,050,000 lbs of Nerve agent.
The estimates of killed and wounded in Hiroshima (150,000) and Nagasaki (75,000)
So do you think the V2 nerve agent rocket bombs would have been a good response? Maybe I should check my numbers again...?