'Back in the Fight' by Joseph Kapacziewski

From the publisher: On October 3, 2005, Kapacziewski and his soldiers were coming to the end of their tour in Northern Iraq when their convoy was attacked by enemy fighters.

A grenade fell through the gunner’s hatch and exploded, shattering Kapacziewski’s right leg below the knee, damaging his right hip, and severing a nerve and artery in his right arm.