Zee Wolf the Elder joined the Rebel Alliance in Year -2 (1997) as the CO of a fighter squadron. The squadron rapidly evolved into a special operations unit, and then expanded to become a fleet. Wolf became the XO (Lieutenant Supreme Commander) of the Rebel Alliance within a few months, and then ultimately the Leader (Supreme Commander). Sweeping changes strengthened and expanded the Rebel Alliance at a time when the Galactic Empire was in decline, and he fathered a unique diplomatic arrangement that meant that the GE was matched by united, opposing forces that would answer to Wolf.
Wolf, like most of his High Command and large portions of the Rebel Alliance, left the Galaxy at the dawn of Year 0 (December 1998).