Final answer:
The US became a world power through President McKinley's foreign policy decisions, US involvement in the Spanish American War, and the leadership of Teddy Roosevelt.
Step-by-step explanation:
The US became a world power through a combination of factors, including the foreign policy decisions of President McKinley, US involvement in the Spanish American War, and the leadership of Teddy Roosevelt.
President McKinley pursued an aggressive foreign policy, seeking to expand American influence and establish the US as a global power. For example, he supported the annexation of Hawaii and pushed for the Open Door Policy in China.
The US involvement in the Spanish American War in 1898 was a turning point in becoming a world power. It resulted in the US gaining overseas territories such as Puerto Rico, Guam, and the Philippines.
Teddy Roosevelt, who became President after McKinley's assassination, played a significant role in asserting American power. He oversaw the construction of the Panama Canal, which increased American global trade and military capabilities.
In summary, the US became a world power through a combination of President McKinley's foreign policy decisions, US involvement in the Spanish American War, and the leadership of Teddy Roosevelt.
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