Participants in this five-year study will be randomly assigned to receive either cognitive therapy or enhanced usual care. Participants will be identified within the VA Medical Center and the University of Pennsylvania Health System (UPHS) as having experienced suicide ideation in the past month. Cognitive therapy will be provided by Ph.D.-level therapists and will be geared specifically toward older men with suicidal tendencies. The enhanced usual care condition will consist of the usual care that individuals receive for suicide prevention, plus assessment and referral services provided by independent evaluators and study case managers. In addition, patients in the enhanced usual care condition will receive weekly telephone calls from the study therapists. These phone calls will be approximately 15-30 minutes in duration and their purpose will be to ensure patient safety and to provide some support. All participants will be assessed pre-treatment to attain baseline measures of suicide ideation, hopelessness, and depression. Study visits will occur at baseline and Months 1, 3, 6, 9, and 12 to assess suicide ideation. Self-report and clinician-administered measures will be used to assess participants' progress.