Specific Aim 1: To evaluate the effectiveness of brief cognitive-behavioral therapy (B-CBT) for the treatment of suicidality, including suicidal ideation and attempts (regardless of Axis I or II diagnosis) among active duty military personnel. It is anticipated that a large percentage of those identified for treatment will include military personnel recently returned from OIF/OEF. The standard null hypothesis will involve tests conducted comparing improvement following B-CBT (treatment duration of 12 weeks) to treatment as usual (TAU). The primary outcome comparisons will include both direct markers of suicidality (i.e. suicide, suicide attempts) and indirect markers including associated symptomatology (i.e. suicidal ideation, intent, anxiety, depression, hopelessness, substance abuse, agitation, and sleep disturbance), along with remission of psychiatric diagnoses.