Project Life Force Clinical Intervention: is a manualized, weekly 90-minute group treatment lasting 3 months coinciding with the time frame for enhanced monitoring of Veterans identified as "high-risk". The use of Dialectical Behavior Therapy skills in PLF differs from other DBT interventions in that it focuses primarily on emotion regulation (ER), distress tolerance and interpersonal effectiveness in the specific context of implementing a safety plan. Mindfulness is not covered. PLF is augmented with additional skill modules on strengthening friendships and education pertaining to suicide risk, suicide means restriction and suicide prevention mobile Apps.

PLF, a 12-session, group psychotherapy intervention, combines Dialectical Behavioral Therapy (DBT) skill based and psychoeducational approaches, to enhance suicide safety planning development and implementation. Veterans revise their plans over several weeks while learning distress tolerance, emotion regulation, and friendship building/interpersonal skills to incorporate into their safety plans and also receive lessons on gun safety and minimizing access to lethal means. Sessions are augmented with 1) training in the use of a suicide safety planning mobile App to promote accessibility and maximize implementation, and 2) didactic information to bolster recovery, including fostering improved connection with the treatment team, and Veteran's family. Importantly, the group format mitigates loneliness and fosters increased "belongingness", both key risk factors for suicide.

Beck Scale for Suicide Ideation is designed to assess severity of suicidal attitudes and plans for suicide. BSS is a 21 item self-report, rated on a scale of 0-2, with a total score range of 0-38 with higher score indicating higher ideation.

The Columbia Suicide Rating Scale (C-SSRS) will be used to count prospective or treatment emergent suicidal behaviors. The C-SSRS has been used in many treatment trials, and to measure treatment emergent suicidal events during pharmacotherapy.

C-SSRS contains a subscale on suicidal ideation which is scored from 1-5; higher numbers indicate increased suicidal thinking. The definition of suicide attempt for the primary outcome will consist of any actual suicide attempt, aborted suicide attempt, or interrupted suicide attempt according to the C-SSRS.

Depression will be measured with the Beck Depression Inventory-II. This scale consisting of 21 items and scored based on a Likert scale, has high internal consistency (Cronbach coefficient = .92). Each question has a set of at least four possible answer choices, ranging in intensity. When the test is scored, a value of 0 to 3 is assigned for each answer and then the total score is used to quantify the participant's degree of depression from 0 = no depression to 63 = maximally severe depression.

Hopelessness is assessed with the Beck Hopelessness Scale, a 20-item self-report measure with true-false items that assess hopelessness and the extent of positive and negative beliefs about the future. Summed scores range from 0 to 20. Scores provide a measure of the severity of self-reported hopelessness: 0-3 minimal, 4-8 mild, 9-14 moderate, and 15-20 severe. Adequate reliability and concurrent validity data exist for this measure, which has been shown to be predictive of eventual suicide in psychiatric inpatients.

A manualized, weekly 90-minute group treatment lasting 3 months coinciding with the time frame for enhanced monitoring of Veterans identified as "high-risk". This is an open-label pilot study. All participants received the intervention.

Beck Scale for Suicide Ideation is designed to assess severity of suicidal attitudes and plans for suicide. BSS is a 21 item self-report, rated on a scale of 0-2, with a total score range of 0-38 with higher score indicating higher ideation.

A novel, 10-session intervention to enhance currently mandated VA suicide safety planning in a group setting to support its implementation. PLF is a manualized, weekly 90-minute group treatment lasting 10 weeks coinciding with the time frame for enhanced monitoring of Veterans identified as "high-risk". Six of the PLF sessions correspond to a step of the safety plan and teach skills to maximize the use of that particular step of the plan. The use of emotion regulation skills in PLF differs from other DBT interventions in that it focuses primarily on emotion regulation, distraction and developing social support in the specific context of implementing a safety plan. Mindfulness is not covered. PLF is augmented with additional skill modules on physical health management, education pertaining to suicide risk, promoting positive emotion and suicide prevention mobile apps. PLF patients also receive usual care.

18 adverse events were filed. 7 were possibly related to the protocol as participants presented to the ED complaining of worsening depression and suicidal ideation.3 adverse events were related to mental health, but unrelated to suicidal symptoms.

Eight adverse events were unrelated to the protocol. These eight adverse events involved participants presenting to the ED regarding medical issues, such as complications regarding asthma, diabetes, gastroenterology issues, eye swelling and flu.