Becoming like oil and water, their differences began to start infighting between them and he ordered the research to be terminated but Andross ignored Pepper's orders and unleashed a secret weapon after conducting dangerous experiments which nearly reduced the Cornerian planet to a wasteland. Andross before his ambitions turned his morals into evil and his regard for public safety diminished, due to his scientific areas of expertise of bio-engineering and space warps having no interest to Cornerian peace. General Pepper had also been good colleagues with the Cornerian Army's chief science officer Dr. Pepper served in the Cornerian army with James and Peppy, acting as their commanding officer and friend before the later two moved on to become founders of the Star Fox team. Even after the defeat of the Aparoids, Pepper grew progressively ill and was confined to his sickbed, and requested that his old comrade ad friend Peppy Hare should take up his role of general during the attack of the Anglars. General Pepper continued to serve the Cornerian federation and protect the planet in later years by overseeing the successful prevention of Sauria's destruction and make a commanding stance against the Aparoid Invasion, but after Pepper had a close encounter with the Aparoid kind, he had to leave command of the military to the research director Beltino Toad. Following this successful retaliation, General Pepper praised efforts of the Star Fox Team, even going as far as personally offering Fox McCloud an official commission in the end of the war against Andross's Empire, but Fox politely refused it, clarifying that they prefer to do things their own way.

It was thanks to Pepper having called for aid from the Star Fox mercenaries-for-hire that the Cornerian Military were able to repel and defeat the Venomian invasion of Lylat.

A former associate of Andross, he was responsible for the disgraced science officer's banishment and has extensively worked had to protect Corneria and the entire Lylat System from the evil mad scientist. General Pepper is the general of the Cornerian Army and thus commander of all of Corneria's forces in the Lylat System. “ We need your help, Star Fox! Andross has declared war! He's invaded the Lylat System and is trying to take over Corneria! Our army alone can't do the job! Hurry Star Fox!”.

Star fox general pepper