How did the wilmont proviso lead to the American civil war?

The Wilmot Proviso, proposed in 1846, aimed to ban slavery in territories acquired from Mexico after the Mexican-American War. Its introduction intensified the sectional conflict between the North and South, as it highlighted the growing divide over the issue of slavery in new states. The failure to pass the Proviso, coupled with the ensuing debates, exacerbated tensions, contributing to the rise of the Free Soil movement and ultimately setting the stage for the Civil War. The Proviso underscored the irreconcilable differences between pro-slavery and anti-slavery factions in America.