WATCH: First Sergeant Mitch Kriebel is a veteran on a mission. Kriebel, along with his weighted rucksack is walking 150 miles from Lewiston, Idaho to Benton City, Washington. It's a difficult and personal journey meant to honor fallen military and first responders through his non-profit organization, Ruck for the Fallen.

For more information on how you can track a troops' trip, participate in a ruck, or honor a fallen veteran go to: Ruck For The Fallen (ruck4thefallen.org)