What two important Union leaders lead campaigns in the east in 1864?

In 1864, two important Union leaders who led campaigns in the East were General Ulysses S. Grant and General William Tecumseh Sherman. Grant, as General-in-Chief of the Union Army, spearheaded the Overland Campaign against General Robert E. Lee's Confederate forces, while Sherman conducted his famous Atlanta Campaign, ultimately leading to his "March to the Sea." Their strategies were pivotal in applying continuous pressure on Confederate forces and contributing to the Union's overall victory in the Civil War.