Summarize how WWI changed the nature of warfare.

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.

a countries leader should be motivated by the common good of the country.

the option which was not a function of missionaries in the northwest was the first one - they established posts for trading furs and other goods.

missionaries were sent around the world to spread religion and their knowledge and others - they were not merchants who sold furs and other goods.