Opinion differences between veterans and nonveterans among American men over age 21 in 1974–75 were investigated with data from three national cross-sectional surveys. The 37 dependent variables were classified into five issue areas: military affect, government affect, international affairs / cosmopolitanism, authoritarianism-related, and violence-related. Veteran status was positively related to the expression of favorable opinions about the military (“confidence” excepted) when the effects of age and education were partialled out, but was not consistently related to opinions in the other four issue areas, with or without controls, or for World War II-era and Vietnam-era respondents. Hence, except for military-related opinions, the data do not indicate enduring effects of military service in terms of systematic and significant opinion differences between veterans and nonveterans.