Executor Vtarsu was considered by galactic historians to be an inefficient leader. He was mostly concerned with consolidating his gains. He did not fight much, despite the fact that he was a field-marshal in the Exlusite Army.
However, he did launch one major campaign; the True Republic Campaign of 315-340 ABY. During this campaign, an estimated one thousand battles were fought. Despite this, only about ten of them were major battles. Vtarsu's battleforce, despite it being small (most of the Exlusite Army and Navy were off defending the Exlusite's gains) smashed into the heart of the True Republic. There, they encountered heavy resistance. Despite the resistance, by 339 ABY, the Exlusites succeeded in accomplishing the mission of the campaign; to split the True Republic in half.
However, the True Republic fought back. They succeeded in taking back parts of what had been taken from them. In 340 ABY, in one of these battles, the Battle of Bespin, Ezvoli Vtarsu was killed defending the planet from True Republic attacks. Though the True Republic had killed the Executor, they had failed to retake Bespin.