Who wins?

Two factors are often thought to determine the outcomes of military engagements, size of the opposing forces and the levels of technology they employ. Biddle (2004), however, found that since 1900, the larger force wins about 60% of the time, only slightly better than if the two commanders had settled the matter with a coin toss. For the more technologically advanced force, the odds are almost exactly 50 - 50, that  is,  technology,  per  se,  is  not  a  significant  factor  in  determining  the  outcome  of  engagements.