  We state the fundamental theorem of projective geometry for semimodules over
semirings, which is facilitated by recent work in the study of bases in
semimodules defined over semirings. In the process we explore in detail the
linear algebra setup over semirings. We also provide more explicit results to
understand the implications of our main theorem on maps between tropical lines
in the tropical plane. Along with this we also look at geometrical connections
to the rich theory of tropical geometry
