Mexican-American War

What was the Mexican-American War?

The Mexican-American War stemmed from the United States' annexation of Texas in 1845 which led to a dispute over whether Texas ended at the Rio Grande (U.S. claim) or the Nueces River (Mexican claim).

When was the Mexican-American War?

The Mexican-American War was from April 1846 until February 1848.

What consequences did the Mexican-American War have?

In the 1830s few white settlers wanted to cross the Frontier, so the US Army's role in controlling the vast Frontier was relatively easy. In 1848 the situation changed. The USA had won a war with Mexico and so more people wanted to move.

What was the impact of the U.S. winning the Mexican-American War?

After the war the US government wanted US citizens to move into the new territories in the West. Therefore people needed to be able to travel across Native Indians lands.

What land did the US gain because of the Mexican-American War?

The USA gained huge amounts of land in the west from their victory, for example California. Also in 1845 Texas became part of the USA.

What changes to Native American Policy did the Mexican-American war have?

The US Land expansion brought two significant changes to Native American Indian policy.

• ❖ People travelling across the newly gained lands used trails and the US government used its army to force Native American Indians to move away from the trails and stop them attacking the white migrants.
• ❖ The Permanent Indian Frontier still marked out the boundary with Native American lands, but it was no longer the case that white settlers could not cross the Frontier.