On April 26-28, 20 U.S. servicemen and women wounded in Iraq and Afghanistan joined President George W. Bush in the former commander-in-chief's Military Service Initiative, the W100. The 100-kilometer mountain bike ride which snakes through Palo Duro Canyon State Park in Texas "highlights the bravery and sacrifice of the warriors wounded in the global war on terror, as well as those organizations that have made continuing commitments to supporting America's heroes."

Here are some of the amazing pictures captured along the trail:

Missing an arm doesn't keep this warrior from riding:

President Bush leads the pack:

The former president helps a one-legged warrior overcome an incline:

The rough ride isn't all serious -- there's always time for a bit of relaxed fun:

Click here to see more pictures from the ride and videos of the wounded veterans who participated