Physical Activity and Community Engagement (PACE) Among Returning Veterans

Inclusion Criteria: * OEF/OIF/OND veteran * Discharged from the US Army within/up to 12 months ago * Endorse at least moderate difficulty with reintegration (a total score of at least 1.5 on the M2C-Q and a score of 2 on item #14) * Use or have access to an Apple iPhone * Has participated in less than 75 minutes of vigorous-intensity exercise per week over the last two weeks * Understanding and willingness to comply to a 9-week study protocol Exclusion Criteria: * Condition or injury which would prevent exercise\* * Insufficient command of the English language Each veteran will complete the PAR-Q as part of the screening procedure in order to check for any condition/injury which would render exercise harmful. Each veteran will also have undergone a routine physical with medical staff prior to discharge from the U.S. Army. Thus, the veteran should have knowledge of a condition or injury which could be problematic. If such a risk is present, the veteran will be excluded from the study. Veterans will be excluded if a doctor has said that they have a heart condition and should not do physical activity or if they know of any other reason why they should not engage in physical activity. Veterans who are unsure if they are able to engage in physical activity will have to have signed approval from a physical.