Second Galactic Civil War

The Second Galactic Civil War was a major ten-year war spanning the entire Galaxy from the years 90 ABY - 100 ABY

The Battle of Kuat
Most consider the Battle of Kuat to be the first open conflict of the war. In an effort to cut off ship production for the Core Triumvirate, the Federation attacks Kuat. The battle was tipping towards the Mandalorian's side until the Raxus Ascendancy intervened and helped fend off the Federation forces. They won at the cost of one of the Ascendancy's most important generals, Raylen Eros.

The Battle of Raxus
The Triumvirate had a crippling blow at the Battle of Raxus, where the Federation completely destroyed the Ascendancy. Raylen Eros and his warships invaded Raxus, successfully capturing the Governor, and glassed the planet.

From here the tide of the war changed and most of the battles for five years ended up being the Triumvirate defending from the invading Federation.

Bestine
Following a rebel threat Bestine's Boontai Mountain Range, the Federation sent the 97th fleet to Bestine to quell the unrest. Once handled, the Triumvirate ambushed the fleet. The battle is considered a draw because both of the fleets were all but destroyed.

Treaty of Peace
Following the looming Sith threat, Cynthia Crane extended an offering of peace to the Triumvirate, so that they can unite and fight the common enemy. Seemingly out of options, the Triumvirate signed the treaty, and in 100 ABY both of the governments united to form the Galactic Government,