This article uses factor analysis to identify the key variables underlying the many cross-cultural associations reported by Textor (1967). Twelve factors are identified.

It is suggested that the degree of political complexity is more strongly related to degree of social differentiation than to size and concentration of population.

This article employs cross-national and cross-cultural methods to investigate whether pathogen stress is a direct determinant of authoritarianism. The study controls on other factors such as famine, warfare, and malnutrition and evaluates alternative causal models.

This chapter is concerned with correlates of warlikeness among non-industrial societies. Findings indicate that warlikeness is associated with climate, mobility, subsistence, political integration, division of labor, culture contact.

This paper investigates the relationship between discipline experiences in preindustrial societies and aggressive behavior at the societal level. No associations are found between discipline experiences and suicide, murder, aggression resulting from alcohol consumption, or aggression expressed in war-making.

This book takes a cross-cultural, cross-historical approach to the study of military deterrence. Political, economic, and geographic correlates are considered, particularly military and diplomatic strategy. Several hypotheses are tested and some are supported.

Drawing from Social Darwinism theories, this article posits warfare (specifically, military success) as a selective mechanism in the evolution of culture. The hypothesis was not supported.

This article answers questions raised by Abrahamson (1969) about the relationship between warfare and political complexity. Significant correlations were found between political complexity and the frequency of being attacked and between frequency of attacking and military success.

This book investigates the evolution of military organizations and their activities. Hypotheses frequently relate military organizations to political variables. Data suggested that more politically centralized societies have more sophisticated military organizations which are more likely to be successful in conflict (though military sophistication does not appear to deter attack).

This chapter offers an exploratory study that examines the relationships between several culture characterstics, including child socialization practices, social structure, and food production, and mind-altering drug use in non-literate societies. All hypotheses were supported.