The annexation of Texas to the United States was likely the biggest cause of the Mexican - American War.

The annexation of Texas to the United States was likely the biggest cause of the Mexican-American War.

Step 1: Understand the context The Mexican-American War was a conflict that took place between 1846 and 1848 between the United States and Mexico. It was primarily fought over territorial disputes and the desire of the United States to expand its territory.

Step 2: Analyze the statement The statement suggests that the annexation of Texas to the United States played a significant role in causing the Mexican-American War. To determine the accuracy of this claim, we need to examine the historical events leading up to the war.

Step 3: Examine the annexation of Texas The annexation of Texas refers to the incorporation of the Republic of Texas into the United States in 1845. Texas had declared independence from Mexico in 1836 and had been an independent nation for nearly a decade before its annexation.

Step 4: Understand Mexican perspective From the Mexican perspective, the annexation of Texas was seen as a violation of their sovereignty. Mexico had never recognized Texas as an independent nation and still considered it a part of its territory. Therefore, the annexation was viewed as an act of aggression by the United States.

Step 5: Tensions and border disputes The annexation of Texas exacerbated existing tensions between the United States and Mexico over border disputes. The border between Texas and Mexico was a subject of contention, with both sides claiming different boundaries. The annexation further complicated these disputes and increased the likelihood of armed conflict.

Step 6: Triggering the war The annexation of Texas was not the sole cause of the Mexican-American War, but it was a significant factor. It heightened tensions between the two nations and contributed to the escalation of conflicts over territorial claims. The war officially began in 1846 when Mexican forces attacked American troops in disputed territory.

Step 7: Conclusion In conclusion, while the annexation of Texas was not the only cause of the Mexican-American War, it played a crucial role in escalating tensions and triggering the conflict. The annexation was seen as a violation of Mexican sovereignty and exacerbated existing border disputes.