What effect did John Hay’s open door policy letters have on the imperial powers of Britain, France, Germany, Russia, and Japan?

A.
It provoked the imperial powers to declare war on the United States.

B.
It caused the imperial powers to restrict trade in their trade with China.

C.
It warned the imperial powers that the United States would soon declare war on China.

D.
It signaled to those powers that the United States would take a larger role in world affairs than before.
Use the image to answer the question.

A world map is titled “The United States Expands in the Pacific.” The following areas are indicated as the United States and its possessions. The date is the year in which each was acquired. the continental United States Howard Island and Baker Island (1857) Johnston Island (1858) Jarvis Islands (1858) Alaska (1867) Midway Islands (1867) Hawaiian (1898) Palmyra Atoll (1898) Philippines (1898) Guam (1898) Wake Island (1899) America Samoa (1899)

Why were the islands shown on this map most likely acquired or annexed by the United States?

A.
to function as trading ports and naval bases, and to increase U.S. influence in the Pacific region

B.
to add states to the nation

C.
to force Hawaii into joining the United States

D.
to serve as military posts for an attack on Russia

D.

It signaled to those powers that the United States would take a larger role in world affairs than before.

A.
to function as trading ports and naval bases, and to increase U.S. influence in the Pacific region

The correct answer is: A. to function as trading ports and naval bases, and to increase U.S. influence in the Pacific region.

For the first question, the best way to answer it is to understand the historical context of John Hay's open door policy letters. The Open Door Policy was a proposal put forth by the United States in the late 19th century to promote equal commercial access to China for all nations. John Hay, who was the U.S. Secretary of State, sent a series of open door policy letters to the imperial powers of Britain, France, Germany, Russia, and Japan.

To determine the effect of these letters, we can eliminate options A and C, as there is no evidence that the letters provoked the imperial powers to declare war on the United States or warned them about an impending war with China. Option B, which suggests that the letters caused the imperial powers to restrict trade with China, is also incorrect.

The correct answer is option D. John Hay's open door policy letters signaled to the imperial powers that the United States would take a larger role in world affairs than before. This policy aimed to ensure that no single country would dominate trade with China. While the imperial powers may not have agreed with the policy, it did indicate that the United States was asserting itself as a major player on the global stage.

Regarding the second question about the islands shown on the map, the most likely reason for their acquisition or annexation by the United States is option A. The islands were acquired or annexed to function as trading ports and naval bases, and to increase U.S. influence in the Pacific region. These islands provided strategic locations for the United States to expand its military presence, establish naval bases, and facilitate trade and commerce in the Pacific.