The Strong Force: Quantum Chromo Dynamics
Quantum Chromo Dynamics (in short QCD) is the field that studies the strong force between quarks. Like QED (Quantum Electro Dynamics) studies the electromagnetic force on the basis of quantum field theory, QCD does so as well. So we will find many similarities in applying fields, waves, interactions and how the force comes about. However, many of the processes in QCD cannot be calculated exactly. So it is not as advanced as QED.