How did the battle at Shiloh effect Grants strageties?

The Battle of Shiloh in April 1862 had a significant impact on Ulysses S. Grant's military strategies. The unexpected intensity of the fight and the high casualties underscored the need for more robust reconnaissance and planning. As a result, Grant emphasized the importance of coordinated attacks and the need for strong defensive positions in subsequent campaigns. This experience also reinforced his resolve to maintain aggressive operations against Confederate forces, ultimately contributing to his success in the Western Theater.