One very famous, perhaps the most famous way was through improvised vaccination. Specifically, George Washington ordered his healthy men to be injected with substance taken from the wounds of the sick men during a smallpox infection.
A risk was that those men would get sick just like the the sick men did, but the the potential reward would be that they would get sick in a controlled way and that they would be able to fight this disease.
In the days before World War II, all three countries were colonies/territories of other countries.
The Philippines was an American Territory.
Vietnam was a French Colony.
India was a British Colony.
Hope this helps!
The southern United States had the highest percentage of slaves. I am not sure what time period you are talking about but I assume you mean in the United States.
Answer:
basically hitler wanted to take over the world and he started to raid and take over other countries and kill jews.
Explanation:
