To liberate the Mississippi, isolate all Confederate units to the West of the river, and then head East to come to the aid of the Army of the Cumberland.
Secure control of the Mississippi, thus further isolating the South.
The Union's Western Campaign was conducted with one primary goal: to cut the Confederacy into two halves. Achieving this goal would isolate the western Confederate states, weaken the eastern Confederate states, and open up the Deep South to invasion from the west.
To get renforcement.
Secure control of the Mississippi, thus further isolating the South.
To reunite the states and get the cotton revenues back.
The major goal of the Confederacy was independence from the United States. The North, the US, had the main goal of ending the Southern rebellion and restoring the Confederate states back into the Union.
Western Virginia Campaign happened in 1861-05.
Western Tai'an Campaign happened on 1947-12-09.
Western Desert Campaign happened on 1940-06-11.
Western New Guinea campaign happened on 1944-04-22.
Campaign to Suppress Bandits in Western Guangxi happened on 1951-04-15.
Campaign to Suppress Bandits in Western Hunan happened on 1950-10-15.