How did winning the Battle of Shiloh help the union win the civil war?

Winning the Battle of Shiloh in April 1862 provided the Union with a significant strategic advantage by securing control over key waterways and railroads in the Western Theater. The victory bolstered Union morale and solidified General Ulysses S. Grant's reputation as a capable leader, which was crucial for future campaigns. Additionally, the battle underscored the need for more effective military organization and strategy, prompting reforms that ultimately contributed to the Union's success in the war. Overall, Shiloh marked a turning point that helped pave the way for further Union victories in the West.