Fontaine was an Earthforce General during the Earth-Minbari War.

in 2245, Fontaine gave a joint briefing with General Lefcourt on the opening battles of the Minbari War, including the attack on the Jericho 3 base. In 2247, General Fontaine placed Dr. Stephen Franklin in the stockade for refusing to turn over his notes on Minbari DNA.[1]