Having tried to take over the Solo Ship, the Union instead attempts to simply call the colonists under their command. A squadron led by Leclan met up with them, but the colonists refused to acknowledge his authority, literally laughing in his face. However, they did agree to co-operate in an attempt to attack Rukuku's fleet off Saturn.
Despite the colonists doing pretty much as they liked in the ensuing battle Leclan did have a grudging respect for their skills but was also stubborn, refusing to retreat in front ot the colonists. He died when his flagship, the Gorlicky, was destroyed in the battle.
Leclan is about the only high-ranking Earth-based character who isn't a complete shit.