The purpose of the Kellogg-Briand Pact was to basically outlaw war. The pact was signed, in August of 1928, by France, Germany and the United States. The pact is named after its two authors, Frank B. Kellogg and Aristide Briand.
Just look it up
<span> compare histories written by people who fought on different sides of a war.</span>
Is not really a responsibility because it is not a requirement just something you can do that could help
1) The word "vassal" was mostly used for the knights who were responsible for providing the military defense for the king - the answer is "perform military service"
2) Magna Carta is known as the first document to limit the power of the king ! (3rd option)
3) this was the Holy Roman Empire, which was actually an association of independent states.