The Siege of Vicksburg was important to the Union troops because they were able to take control of the Mississippi River. This allowed the Union troops to cut the Confederacy in half and allowed the Union to cut of supplies/resources to Confederate states.
The Battle of Gettysburg was an important Union win because this was the last time in the Civil War that the Confederate troops truly invaded the North. After this battle they did not invade any state north of Pennsylvania.
Hi! Florida was obtained by Britain by treaty with Spain after victory in war. In 1762, during the Seven Years' War, a British expedition attacked and occupied Havana, the capital of Cuba. To secure the return of this valuable city, Spain agreed to cede its territory of La Florida to the victorious Great Britain under the 1763 Treaty of Paris. I hope this helps you! Good luck and have a great day/night. ❤️✨