19th century: The American expansion was guided by the concept of <em>Manifest Destiny</em>, being that the people of the time believed it was their fate to expand and colonize the rest of the territory (that became what is now the U.S.), whilst pushing forward their virtues and institutions, with the urge to do so being irresistible to them.
20th century: The expansion of this period (that actually started in the final years of the century before) was called <em>Imperialism</em>, where the idea of gaining overseas territories, expanding American influence on international market by expanding their industry and trade.
Similarities and differences: In both periods there was an interest in expanding American territories, although the ideologies behind those movements where different: in the former the belief of forming a great country through force of will was their core motive; conflicts with other nations and cultures were consequences rather than the motif. In the later the economic and power interest where the reasons for doing so; the expansion had many morally questionable sub-tones, such as racism and an exaggerated me-before-you approach to all, with conflict and war being promoted by one president of the time (Theodore Roosevelt).
In result of wet conditions and also poor hygiene, a lot of the soldiers would suffer from 'trench foot'. hope this helped :)
The correct answer to this open question is the following.
Although there are no options attached or further reference and context, we can say the following.
The event in Georgia that showed both growing racism and a deep suspicion of northerners moving to the South was the Atlanta Race Riot of 1906.
The Atlanta Race Riot started on September 22, 1906, and ended two days later. Infuriated white people violently attacked and wounded many African Americans in Atlanta, Georgia. They also damaged black's private property.
The justification: it was said that some blacks had assaulted a white woman and this was reported on the news. But historians agreed that this incident was just the trigger because white people felt threatened by the increasing number of African Americans in the workplace and the factories.
Big fruit businesses helped overthrow the kingdom of Hawai'i with the help of the American government. The famous company Dole (which sells pineapples) wanted to make Hawai'i do the Bayonet Constitution, the Queen Liliuokalani refused, and after the Dole company started producing in Hawai'i, they had to surrender after American militia and marines threatened them, causing the queen to surrender her island over to the American government.
