Military service and reserve duty in combat units entails exposure to traumatic events that require mental adjustment. In light of the results of controlled studies that proved the effectiveness an response-time based mechanized training protocol in reducing risk for post-trauma symptoms in deployed combat soldiers, the Israeli Defense Forces decided at the beginning of the Iron Swords War to implement an internet-based App of the intervention. Soldiers and combat reservists were invited to use the Combat Attention App. The purpose of this study is to examine the effectiveness of the Combat Attention App in relation to a control group of soldiers who did not use the App in reducing risk for post-traumatic stress symptoms of deployed soldiers.

Participants who used the Combat Attention App before combat deployment and a group of matched (age and sex) participants who did not use the App will be compared on PTSD, depression, and anxiety symptoms post deployment.

Inclusion criteria:

• Age over 18 years.
• Served as an enlisted soldier or reservist during the Iron Swards War.
• Used the Combat Attention App or can serve as a matched control who did not use the App.
• Colloquial Hebrew sufficient to fill out the research questionnaires.

Exclusion criteria:

• Below 18 years of age.
• Colloquial Hebrew that is insufficient to fill out the research questionnaires.

The study population consists of enlisted and reservist soldiers who participated in the Iron Swards war and either used or did not use the attention App.