What two important union leaders led campaigns in the east and in the south in 1864?

In 1864, two significant Union leaders were General Ulysses S. Grant, who led the campaigns in the East, particularly during the Overland Campaign against Robert E. Lee's Confederate forces, and General William Tecumseh Sherman, who conducted the Atlanta Campaign and the subsequent March to the Sea in the South. Grant's strategy focused on relentless pressure on Confederate armies, while Sherman's tactics aimed at crippling Southern infrastructure and morale. Together, their efforts were crucial in turning the tide of the Civil War in favor of the Union.