Maybe because they knew they were taking the Indian's land so they knew they were going to fight so they had to kill them... but the blacks who were slaves were sold to Americans so no war or anything happened between them ... they knew the Slaves could not fight and if they did they would still have control
Here's a reason why: Africans were strangers to the Americans. Because the Africans were poor, they didn't have any allies to watch out for them or to protect them.
The Vice President serves as a "back-up" to the President, who also serves as the Head of State (President of the Senate, presides over joint Congress sessions).
In the presidential line of succession, the Vice President is the second in command.
