We examined whether the General Factor of Personality (GFP) is related to the "g" factor of cognitive ability using data from the Vietnam Experience Study which randomly sampled 4462 Vietnam War veterans from a total sample of about five million Vietnam era army veterans. Exclusionary criteria included passing a fitness test, achieving a final rank of no higher than sergeant, and scoring above the 10th percentile on a pre-induction general aptitude test, but otherwise the sample is broadly representative of the U.S. male population for the period 1965-1971. A hierarchical confirmatory factor analysis of the Minnesota Multiphasic Personality Inventory (MMPI) and 15 cognitive ability tests yielded three first-order factors from the MMPI (Somatization, Internalization, and Externalization), and four first-order factors from the cognitive ability tests (Memory, Dexterity, Crystallized, and Fluid intelligence). At the apex of both measures was a general factor and we were able to fit a model which integrated both structures. This model provided a close fit to the data (chi[superscript 2] = 3114.1, df = 235, RMSEA = 0.052, SRMR = 0.047, NNFI = 0.97), and provided an estimate of -0.23 for the correlation between "g" and the GFP(Abnormal), that is, the higher the "g" score the higher the score on the GFP. One possible reason for the low correlation is restriction of range in the sample. Another is that intelligence and personality are to a degree mutually exclusive strategies, the first aimed at generating resources and the second at maximizing one's share of resources. (Contains 4 tables and 1 figure.)