Which fundamental force is described by quantum chromodynamics?

Quantum chromodynamics is the modern theory of the strong interaction. It says that quarks carry a type of charge called color charge and interact by exchanging gluons. Unlike electromagnetism, the strong force behaves in a way that becomes stronger at larger separations, a property known as confinement. This theory has been confirmed through high-energy particle experiments and is central to our understanding of protons, neutrons, and nuclear matter.