Yes it was rationed but available
Chocalate coffee
Yes coffee was still around while World War 2 was around. Coffee has been around for ages. Early back people from another country had brought coffee to America. So the answer is yes they did have coffee then. Hope this answer helps. Look for my other answers or questions, too.
Because it was rationed.
Yes, coffee was allowed in Copenhagen during World War 2. However, it was rationed so it was rare for people to actually have it to drink. Also rationed was gasoline and cigarettes.
tea
to mislead the enemy
peanuts
It may have been considered possible once, as the close of World War 2 did lead to the Cold War, which very nearlly turned into a Nuclear war. However it can be said that any Nuclear war could have it's roots in World war 2 as the Nuclear weapon has it's roots in World war 2. Also if a Asian Communist nation was to start World war 3then that could be traced back to the Cold war and that in itself could be traced back to World war 2. It's all just a matter of perspective, for example; many causes of World war 2 have their roots in World war 1 so any war that could be traced back to the Cold war could then be blamed on events of World war 2 and in turn could be linked to the outcome of World war 1. So their is no yes or no answer as it really depends on how you look at it.
Coffee was allowed during World War II in Copenhagen. It was one of the many items that was rationed in Denmark during this time. Cigarettes and gasoline were also rationed.
In Britain in World War 2 tea was available but rationed.
Bacon, eggs, toast, cereal, oatmeal, juice, coffee
There are many different statistics that could be gathered from the famous World War 2. You could gather stats about death.