  The effective interaction between two classical nonrelativistic electrons
(positrons) in the presence of intense electromagnetic radiation (one and two
waves) is theoretically studied. Small relativistic corrections are taking into
account in the laboratory reference frame. The field of an intense wave forms
the movement of particles in such a way that their trajectories are practically
parallel for quite a long time, and in the perpendicular direction the
particles shift slightly, approaching first and then moving away from each
other. This result can be considered as an effective attraction of same charged
particles. Shown that the effective attraction of two electrons and two
positrons could be substantially asymmetric.
