The correct answer to this open question is the following.
You do not specify to what war you are referring to, either which region of the world.
However, trying to help you we are going to assume you are referring to the American Civil War. If that is the case, we can comment on the following.
In the early part of the American Civil War (1861-1862), the side that won more battles was the southern side, the Confederate Army.
Let's remember that after seven southern states seceded from the union, the American Civil War began.
Abraham Lincoln won the elections and became President of the United States. Then the states that seceded were South Carolina, Alabama, Mississippi, Florida, Louisiana, Georgia, and Texas. They formed the Confederate States and the War began.
In the early part of the American Civil War (1861-1862), the Confederate Army won more battles.
Among the most important battles held during those first years were the Battle of Bull Run, the capture of Fort Donelson, the Battle of the Monitor and Merrimac, the Battle of Shiloh, the Battle of New Orleans, the Seven Day Battles, and the Battle of Antietam.