The alliance system in Europe basically was if one country went to war, all of the other countries in that alliance would back up their buddy and go to war as well. This is what happened when Archduke Franz Ferdinand was assassinated and Austria-Hungary was arguing with Bosnia and each of their alliances go pulled in with them too.
Answer:
The advantage that French-American colonists had over the British-American Colonists was that French-Americans worked in unified manner, they had one Direction, on Council, and one Purse, whereas, British-American colonies were disunited.
Explanation:
The French and Indian War began in 1754 over the dispute of having territorial gain of the heart of North America, that is Ohio River Valley. Ohio River Valley was the center of trade and settlements. But the issue was under which colony does this area come, French colonies or American Colonies.
During the War, the French-American colonists had upper-hand over the British-American Colonists in a way that they were unified. The French-American colonists fought under '<em>one Direction, one Council, and one Pulse.' </em>Whereas, the colonies of British-America were unconnected and disunited. This disunity among the colonies was portrayed by Benjamin Franklin in his cartoon 'Join or die' which predicted that if British-American colonies will not fight in unity there will be much loss.
I would say that a significant change affecting the natural environment and biodiversity could be the cultivation of corn and beans in mesoamerica which probably required the clearing of some land for the purpose. In populous societies such as the Aztecs the amount of cultivation would have been significant to feed a large population. In more recent times, the buffalo hunt of the First Nations and metis people in what is now Canada as long as it was carried out on a small scale for food and clothing was sustainable but once rifles were introduced and hides were sought and also due to a deliberate policy of extermination by the US military to destroy the independence of the First Nations and force them onto reservations, the bison were almost exterminated. In the 16th century, it was estimated that there were 25-30 million buffalo which is one of the largest populations of mammals recorded in the world. It is believed that the First Nations deliberately burned areas of the Great Plains to foster grasslands for the buffalo feed.
The United States wasn't a part of it and the countries that were a part of it didn't take the idea of collective security seriously. When countries attacked others nothing was done.
