How do Force Fields Occupy Space?

[PairTheBoard]

An electron has a Force Field around it which acts to repel other electrons and attract positively charged protons.

A moving electron generates a Magnetic Force Field which acts to attract or repel other magnetic objects.

There are also force fields created by strong and weak nuclear forces.

There is also the Gravitational Force Field which extends through space by actually deforming the space-time continuum. But how do the electic, magnetic, strong, and weak force fields extend through space and occupy it? They don't bend space like gravity. They aren't physical objects in the sense of having mass of their own. Yet somehow they reach out through space to attract or repel other objects with similiar force fields of their own. What are these things called force fields exactly?

PairTheBoard