I will discuss the four forces in the universe, their ranges, their potential, and the difficulty to unify them into one force or into one set of related equations. Studying the interactions between confined quarks in a meson or de-confined quarks in a very hot medium, such as the Quark Gluon Plasma, can help us understand the potential, which can help us understand the force, and how to tie this force to the other forces of Nature.