  It is argued that there is a connection between the fundamental forces of
electromagnetism and gravitation. This connection occurs because of: 1) the
fundamental significance of the finite and invariant velocity of light in
inertial reference frames in the special theory, and 2) the reliance of the
general theory of relativity upon the special theory of relativity locally in
spacetime. The connection between the fundamental forces of electromagnetism
and gravitation follows immediately from these two points. A brief review is
provided of: 1) the role of the finite and invariant velocity of light in
inertial reference frames in the special theory, and 2) certain fundamental
concepts of the general theory, including its reliance on the special theory
locally.
