Answer: Tanks and military-grade planes
Explanation: Imperialism was about almost everywhere in Europe at the time and around that time most European countries had territories in Africa which lead to constant fighting for the land there. What this lead to was intense fights between nations by them creating proxy wars (militias/Rebel groups) to fight against each other which were being supplied by that country that wants more land for them self. With that it lead to Archduke assassination which lead countries to declare wars on one country which then would mean they would declare war on multiple countries in realty because countries would ally each other and the domino effect went down hill from that. So Archduke assassination was just really a "reason" to fight with another nation for more land (resources).
Answer:
The Mississippians are known for being great builders of cities. What was Cahokia? Cahokia was a city covering about 5 square miles, contained over 100 flat-topped pyramids and mounds, and was home to an estimated 16,000 people. Does this answer your question?
Explanation:
US has been formed by joining of the states
