An offensive strategy is bringing war to the enemy, either directly by testing and challenging their strength or indirectly by breaching and penetrating their weakness.
Strategic goals involve defeating, destroying, or forcing enemies to retreat which leads to the capture of strategic sites which include (supply lines, depots, arsenals, and communications centers)
Fortifications were built in order to slow the enemy down and break their formation in order to get the advantage.
Fortifications were also built in order to protect against enemy gun fire and also allow guns to be fired from the cover of the walls, the term for this is called "Embrasures".
Cannons played a major role in the Civil War, some of the cannons used forces large enough to destroy fortifications and kill many people at once.
The Civil War brought many advancements in gun technology today, such as rifles and fire arms. These weapons were repeatedly used in both sides, as well as knives and swords.
The White-House telegraph office enabled President Lincoln to monitor battlefield reports, lead real time strategy meetings and deliver orders to his men.
The Confederate army was at a disadvantage due to the lack of technological communication to conduct a large scale campaign attack plan.
Communication on the battlefield was very important and both armies experimented with new signals that use both old and new communication technologies.
At the beginning of the war, both sides made extensive use of visual signals and couriers, they both began to rapidly rely on these telegraph and visual signals.
These balloons conducted aerial reconnassiance and artillery spotting.
These had the ability to go a thousand feet into the air above landscape, these balloons gave military leaders a platform that allowed them to see miles and miles, this was definitely an advantage, both sides used these but the Union was more successful and organized.
The Civil War was the first in which railroads had a huge factor in.
Wars have always been fought in order to control supply centers and road junctions, but the Confederate government was slow to recognize the importance of the railroads in the conflict.