What factors and events led to the union victory in the civil war?

Several key factors contributed to the Union victory in the Civil War, including superior industrial capacity and infrastructure, which allowed for more efficient production and transportation of supplies and troops. The Union also had a larger population, providing a greater pool of soldiers. Significant events, such as the victories at Gettysburg and Vicksburg in 1863, shifted the momentum in favor of the Union, while the leadership of General Ulysses S. Grant and the implementation of total war strategies weakened Confederate resolve. Additionally, the Emancipation Proclamation helped to undermine the Confederacy's labor force and bolstered Union morale and support.