Complex sentence: Soldiers holds weekend retreats that pair professional songwriters with active duty and veteran service members--many of them suffering from Post-Traumatic Stress Disorder and/or Traumatic Brain Injury--who share stories about their experiences of combat and the challenges of returning home.
Split into simpler sentences: Soldiers holds weekend retreats that pair professional songwriters with active duty and veteran service members who have been wounded in combat. Service members share stories about their experiences of combat and the challenges of returning home.