@Butrflynet,
There was a documentary on Coca Cola a few days ago that was on tv. It has to do with their marketing. They even changed their ingredients for a few years, but knew the change was the wrong decision, and returned to their original.
The specially shaped bottles was an excellent idea, but during the war years, they made sure all the military had coke no matter where they were located. Coke made sure they were delivered to the front lines. They knew that the returning soldiers from the war would be their best customers.
When I was in the USAF in the late fifties, I must've drunk 3-4 bottles a day with peanuts - when not drinking beer.
I think that was the same with all the military service men and women after WWII.
You can go to any place on this planet, and you'll always find coke.