The colonial presence in the Pacific, particularly the role played by European powers and the United States, had significant implications for the region. Here are some key points regarding colonialism in the Pacific:

1. British Colonialism in the Pacific Islands:
• By the early 20th century, the British had established colonial control over many of the Pacific Islands.
2. The Monroe Doctrine and American Expansion:
• The Monroe Doctrine, initially articulated in 1823, emphasized the United States' policy of non-interference in European affairs and its exclusive influence in North and South America.
• Despite this policy, by the 1890s, the United States began to expand its influence beyond the Americas, particularly in the Pacific and the Far East, thereby extending the concept of its "backyard."
3. Annexation of Hawaii and Other Territories:
• In 1881, the United States started to claim the Hawaiian Islands as part of its territory, which was formally annexed in 1898.
• The Philippines was seized and annexed by the United States.
• Spain ceded Puerto Rico and Guam to the United States.
• Cuba, though legally independent, had its foreign policy largely dominated by the United States.
4. Colonial Competition and Division:
• The Pacific was a region of colonial competition, with various European powers and the United States vying for control.
• The Samoan Islands became the focal point of a power struggle among the United States, Germany, and the United Kingdom. The islands were partitioned between the United States and Germany in 1899.
5. Colonial Interests of Australia and New Zealand:
• Settlers from Australia and New Zealand played a significant role in advocating for British colonization in the Pacific.
6. Colonial Division in Asia:
• The main colonial competition in Central and West Asia was between Russia and Britain, with both powers seeking to expand their influence.
7. Russo-British Agreements:
• After the Russo-Japanese War (1904-1905), Russia and Britain reached an agreement in 1907. This agreement recognized Tibet and Afghanistan as areas under British influence, establishing a buffer zone between India and Russia.
8. Iran (Persia):
• The 1907 agreement designated Northern Iran as Russia's sphere of influence, Southern Iran as Britain's, and Central Iran as a buffer zone with equal independence for both.
9. Colonial Holdings in Asia:
• Britain controlled several territories in Asia, including India, Ceylon, Afghanistan, and Burma.
• Most of the Far East had been colonized by 1871, with China being the major exception.
10. China and Japan:
• China and Japan were independent nations in East Asia.
• Japan underwent a process of industrialization following the Meiji Restoration in 1868, ultimately becoming an imperialist power in the late 19th and early 20th centuries.
• China, on the other hand, faced imperialist pressures during this period.

These developments in the Pacific region illustrate the complex dynamics of colonialism, competition between colonial powers, and the expansion of imperialist influence by the United States.

The history of colonialism in the Pacific, particularly the role of the United States, illustrates the complex dynamics of imperialism in the region. Here are some key points regarding colonialism in the Pacific with a focus on the United States:

1. Monroe Doctrine and U.S. Expansion:
• The Monroe Doctrine, established in 1823, outlined two key principles: the policy of U.S. isolationism and its claim to hegemony in North and South America.
• It declared that the United States would not engage in European affairs or establish colonies and that any such interference in its "backyard" (comprising all of the Americas) would be viewed as an act of aggression.
2. U.S. Imperialism in the Pacific:
• Despite the Monroe Doctrine's emphasis on non-interference in other regions, by the 1890s, the United States began to expand its influence beyond the Americas, extending its concept of the "backyard" to include the Pacific and the Far East, particularly China.
3. Annexation of Hawaii:
• In 1881, the United States initiated claims over the Hawaiian Islands, eventually leading to the annexation of Hawaii in 1898. These islands continue to hold strategic importance for U.S. policy in the Asia-Pacific region.
4. Spanish-American War:
• The Spanish-American War, which took place in 1898, was primarily fought over control of Cuba and involved several other territories.
• As a result of the war, the United States acquired the Philippines, while Spain ceded Puerto Rico and Guam to the United States.
• Cuba, though granted legal independence, had its foreign policy heavily influenced by the United States and was restricted from making treaties with other countries.
5. Samoa and Pacific Rivalry:
• The Samoan Islands in the Pacific became a point of contention among the United States, Germany, and Britain.
• In 1899, the Samoan Islands were partitioned, with the United States and Germany dividing control, while Britain received compensation elsewhere.
6. British and Other Colonial Interests:
• In the case of Britain, settlers from New Zealand and Australia played a significant role in advocating for British colonization in the Pacific.
• The Fijian islands saw British intervention in 1885, partly in response to demands from the local population.
• In 1885, Britain and Germany divided the eastern half of New Guinea among themselves, while the western half remained under Dutch control.
• Germany also acquired certain islands in the Pacific from Spain.

These developments highlight how the United States shifted from a policy of isolationism outlined in the Monroe Doctrine to becoming an imperialist power with territorial acquisitions in the Pacific and beyond. The Pacific region witnessed complex interactions among various colonial powers during this period.