How did the Mexican-American War lead to conflict over slavery?* 1 point O Many African Americans served in this war which made it difficult to justify slavery The United States gained a lot of land after winning the war and a debate would rage O about how the slavery question would be settled in these new territories gained from Mexico о O After losing the Mexican-American War, the United states lost a lot of slave states to Mexico and that caused an imbalance of free and slave states​