Answer: It increased, more unemployed people.
Explanation: For protection, to make sure local people didn't steal the food for their own sustenance.
Leaders wanted as much territory as possible for their empires which led to things like the imaginary line of demarcation. They were motivated with the glory and wealth that came from having big empires. This is because large empires facilitated trade and collection of more taxes
Slavery tolerated because of "necessity" means that you do not really want to do it, but you think you must do it. An example is when you have a farm and you need people to work on it. The trouble behind this scenario is that your farm isn’t making money to pay your farm helpers their proper wages, so you resort to slavery. In this case, you do not need money for salaries because your farm is doing well to keep your slaves clothed and fed.
Slavery affirmed as a "moral right" is when you think it is your right to be the master and the slaves deserves to be slaves.
The answers are
1.advanced weapons and artillery
2,explosions
3.trenches
4.barbed wire
5.radios
Video from Edgeunity
The compaign methods from that year was also noteworthy for the intense personal attacks widely employed by the supporters of both candidates