Humans are the kind of beings who can shake hands with their mortal enemies for the sake of greater profit.

Different ideologies, opposing goals, even completely divergent visions of the world—it doesn't matter.
The power to join hands despite all that is what separates man from beast.

Animals only see the enemy they want to kill.
Humans? They can look their enemies in the eye and still figure out why they must cooperate, suppressing instinct for reason.

“To achieve greater dreams and greater profit, people sometimes join hands with their enemies. There is nothing shameful about that.
What is shameful, I believe, is letting the chance slip by, failing to grasp it, and later pounding the ground in regret for missing the opportunity.”

“Hmph. Not an unreasonable argument.”

“Your Majesty, if I may be so bold—I imagine even the Prophet himself must have joined hands with his enemies more than once in his mission to spread Allah’s teachings.
Were it not for that wisdom, the Sultanate would not exist as it does today.”

“You’re presumptuous—but not wrong.
When the Prophet first rose up in the holy city of Mecca, he made peace with the city’s chief, a man who worshipped Deus.
Granted, the man later converted after witnessing the glory of Allah through the Prophet.”