new technologies changed warfare because nobody ever had to face mustard gas or trench warfare before. the unknowing and harshness of these made mustard gas banned in war and the (in the best way i can put it) injury/illness of trench foot to make people loose there legs, until combat boots where created.
Answer:
4. Paraguay lost a large part of its territory
Explanation:
The War of the Triple Alliance was a war between Paraguay from one side, and Uruguay, Argentina, and Brazil from the other side. Paraguay decided that it should have access to the Atlantic Ocean in order to be economically more independent, but Uruguay was standing on its way. In order to achieve its goal, Paraguay attacked the smaller and weaker Uruguay in an attempt to invade it. This was not seen fondly by Brazil and Argentina, and they were quick to react, making an alliance between them, as well as with Uruguay. This alliance was known as the Triple Alliance, and its purpose was to prevent Paraguay from invading Uruguay and becoming a powerhouse in South America. The Triple Alliance came out as the victorious side in the war, with Paraguay losing big chunk of its territory to Argentina and Brazil.
It is "C. the power to make treaties" that requires a 2/3 vote from the Senate, since the Founding Fathers wanted to ensure that the United States only made such treaties with reliable nations.
Slavery ended in the United States of America after the civil war because the Union won the war which has the opinion to end slavery.
<h3>How did slavery affect the USA after the civil war?</h3>
Due to Union victory in the Civil War, about four million slaves were freed. The U.S government granted citizenship to African Americans and the right to vote in the election.
So we can conclude that Slavery ended in the United States of America after the civil war because the Union won the war which has the opinion to end slavery.
Learn more about slavery here: brainly.com/question/9374853
#SPJ1