Which war was fought to gain independence from Great Britain?

The American Revolutionary War is the conflict that was specifically fought to gain independence from Great Britain. This war, which lasted from 1775 to 1783, began as a struggle between the thirteen American colonies and Britain over issues such as taxation without representation and other forms of colonial governance that the colonists found oppressive. The desire for self-determination and the establishment of a government that respected the rights and freedoms of its citizens drove the colonies to seek independence.

The outcome of the American Revolutionary War was significant, as it led to the establishment of the United States of America as a sovereign nation, free from British rule. The Declaration of Independence, adopted in 1776, clearly articulated the colonists' right to break away from oppressive governance, which was a revolutionary idea at the time and laid the groundwork for democratic principles that are still valued today.

In contrast, the Civil War was fought over issues including slavery and states' rights, the War of 1812 was primarily about maritime rights and territorial expansion, and World War I involved a complex interplay of global alliances and conflicts in Europe. None of these wars were focused on the struggle for American independence from Great Britain. Therefore, the American Revolutionary War is the correct answer.