How did imperialism in Africa and Asia, and the value of the U.S. exports in 1870-1920 increasing support a policy of the Open Door?

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To understand how imperialism in Africa and Asia, as well as the value of U.S. exports, supported a policy of the Open Door, we need to consider a few key historical factors.

1. Imperialism in Africa and Asia: During the late 19th and early 20th centuries, European powers, as well as the United States and Japan, engaged in imperialistic activities in Africa and Asia. These nations sought to expand their territories, gain access to new resources, and establish colonial control over these regions.

- European powers, such as Britain, France, Germany, and Belgium, claimed vast territories in Africa through colonization or establishing spheres of influence. Similarly, Japan expanded its influence in East Asia.
- The United States joined in this imperialistic movement by acquiring territories such as the Philippines, Guam, Hawaii, and Puerto Rico.

2. The Open Door Policy: The Open Door Policy was an approach advocated by the United States to maintain access to overseas markets in China. It aimed to ensure that all nations would have equal trading rights in Chinese ports, and no country would have exclusive control over specific regions or markets.

Now, let's explore how the imperialism in Africa and Asia, coupled with the value of U.S. exports, supported the Open Door Policy:

1. Economic Interests: Imperial powers, including the U.S., sought colonies to exploit the valuable resources found in Africa and Asia. These resources included minerals, rubber, timber, and agricultural products. By having colonies and exerting control over foreign markets, these nations could secure a steady supply of raw materials for their industries.

2. Market Access: As European nations carved up Africa and Asia, they established their own exclusive trading systems, shutting out other nations. This threatened the U.S.'s access to markets and the ability to export its goods freely. To protect its economic interests, the United States began advocating for the Open Door Policy in China. By ensuring equal trading rights, the U.S. aimed to counterbalance the exclusive trade arrangements of other imperial powers.

3. Rising U.S. Exports: From 1870 to 1920, the value of U.S. exports increased significantly. This growth was fueled by the expanding industrialization and production capacity of the United States during this period. To sustain this growing export economy, the United States needed access to markets abroad and protections against unfair trade practices.

In summary, imperialism in Africa and Asia created exclusive trade systems, potentially limiting U.S. access to foreign markets. In response, the United States supported the Open Door Policy to ensure equal trading rights and protect its growing export economy. The value of U.S. exports during this period further emphasized the need for open access to global markets.