FARGO, N.D. (AP) — A group raising awareness about post-traumatic stress disorder and suicide among combat veterans completed a 400-mile walk in North Dakota.

The event called Brady’s Border2Border Ruck March began on the western border of North Dakota Tuesday and finished Saturday in Fargo. The march is named after Brady Oberg, who served in Afghanistan and killed himself in 2015.

Oberg’s family started the Brady Oberg Legacy Foundation to raise awareness about PTSD. Oberg grew up in Ulen, Minnesota.

KFGO-AM reported that a group of 16 family and friends participated in the march. They each carried a bag with 20 pounds to represent the 20 veterans with PTSD who take their lives every day. The first march took place a year ago.

Tracy Dunham, Brady’s sister, said the march was “amazing” because the people who chose to trek across North Dakota did so while spending five days away from family and work, all so they could “help shine a light on PTSD.”

When Oberg returned home, he continued going to college, found a job, and planned to build a home with his wife, Katie, on a piece of property they purchased, according to his biography on the foundation’s website.