For anyone interested, Lucas says the ruck march is open to anyone who wants to participate. Find out how to contact and join him and learn more here.
Changing our view of what veterans can bring to the table.
Beyond the ruck march, Lucas's wider goal includes expanding our perceptions of how veterans can make a difference in this cause.
"Right now there's a big misconception that people have about veterans, that the only thing we're trained to do is shoot, run and try not to get shot," says Lucas. "But the reality is that all of us in the military received a great deal of training in tons of different things."
Lucas believes that all of the skills veterans learn - which vary widely from diesel mechanics, aircraft repair, water purification, radio communications, and many many more - can be of great value to helping save elephants and rhinos in Africa.
"I think there's a lot of people who just view veterans doing anti-poaching work as guys who are trigger-pullers, who want to act like cowboys," says Lucas. But they have so much else to offer. "How about water purification?" he asks. "Do you need me to put up fence posts?"