This essay explores the individual-level determinants of trust in the U.S. military. Prior research has identified five possible drivers of societal trust in the military: performance, professionalism, persuasion, personal connection, and partisanship. Using data from the American National Election Studies and the General Social Survey, we emphasize the importance of understanding trust at an individual level, as perceptions of military performance and professionalism are not objective but mediated by individual-level factors. Our findings reinforce mixed support for trust being linked to assessments of military success on or off the battlefield, and undermine arguments that relate high trust to a widening gap between the military and civilian society. We also present new evidence for generational and ideational sources of military trust consistent with recent speculation that trust in the military is declining. Overall, we show that individual-level trust may be difficult to change, but that public trust in the military has consequences for a variety of defense-oriented policies.