USCIS 128:91. Name one war fought by the United States in the 1800s.

MS Designer. (2026).  Name one war fought by the United States in the 1800s [AI-generated infographic]. MS Designer.  Edited by Jennifer Gagliardi

The United States fought several important wars in the 1800s. These wars helped shape the country’s history and growth. For the civics test, you only need to name one of these wars.

One example is the War of 1812. This war was fought between the United States and Great Britain from 1812 to 1815. The United States wanted to protect its trade and its independence. During this war, British forces burned the city of Washington, D.C., including the White House. The war ended with no clear winner, but it helped the United States feel stronger and more independent.

Another example is the Mexican-American War. This war took place from 1846 to 1848 between the United States and Mexico. It began after disagreements about the border of Texas. After the war, the United States gained a large amount of land in the West, including areas that are now California, Nevada, Utah, and parts of other states.

The Civil War was one of the most important wars in U.S. history. It lasted from 1861 to 1865 and was fought between the northern states, called the Union, and the southern states, called the Confederacy. The war was mainly about slavery and whether the country would remain united. The Union won the war, slavery ended, and the United States stayed together as one nation.

The Spanish-American War happened in 1898 between the United States and Spain. The war began partly because of events in Cuba. The United States won the war quickly. Afterward, the United States gained new territories, including Puerto Rico, Guam, and the Philippines.

These wars are important because they show how the United States defended itself, expanded its land, and dealt with major challenges. For the civics test, you only need to name one of these wars.