The Union gained complete control of the Mississippi River.
Vicksburg
Mississippi river
Grant
The union gained control of the Mississippi after the capture of Vicksburg.
they gained control of Canada and french lands east of the Mississippi river.
The Spanish gained some territory along the Mississippi River and in Florida (these areas are called West Florida and East Florida, where West Florida is made of the southern areas of Alabama, Mississippi and Louisiana east of the Mississippi River and East Florida is made of the Florida Peninsula). The Spanish also gained control of the Balaeric Island of Minorca.
Siege of Vicksburg.
The Confederacy was successfully split in half by the union. The battle that gained complete control of the Mississippi River. :D
The Union gained control of the Mississippi river in the spring of 1862. The victory at Shiloh gave the North the advantage in the fight for control of the Mississippi River and the river valley.
they gained control of the Mississippi river
It allowed the Union and enabled them to control the river systems and to blockade the entire southern coastline.