Answer:
Some important jobs would be:
- Farmers: if the region is fertile enough, farmers are crucial, simply because they produce most of the food that will be consumed in the area.
- Law enforcers: any area needs some form of law-enforcement, no matter how anarchic it is.
- Doctors: some medical practitioners are also needed, in order to tend the sick and wounded.
- Merchants: a few merchants are also needed, in order to help with the importing and exporting of goods (trade).
Technology has over taken out lives as well as using it every day...
"First let me take a selfie"
"#At#The#Beach"
"Go get my IPhone C Plus honey!"
The best option would be that "<span>The U.S. imposed a treaty that forced Latin American countries to democratize or face crippling sanctions," since it was never in American's best interest to force the democratization of the region. </span>
The smallpox epidemic.
The millitary invasion was devastating but not to the extent of smallpox.
The Jesuits did not really devastate the New World.
Enslavement for sugar plantations mostly occurred with Africans.
Smallpox, brought in by the Columbian Exchange, had a widespread impact that killed a large portion of natives in the Americas.
So the Smallpox epidemic is the answer.