As part of the 2003 invasion of Iraq, he was assigned to B Company, 11th Engineer Battalion of the 3rd Infantry Division. His company was supporting the 2nd Battalion, 7th Infantry Regiment as it made its way through the Karbala Gap, across the Euphrates River and to Saddam International Airport (BIAP) in Baghdad.
On April 4, 2003, a 100-man force was assigned to block the highway between Baghdad and the airport, about one mile east of the airport. A brief battle was fought, and several Iraqi prisoners were captured. SFC Smith spotted a walled enclosure nearby with a tower overlooking it. He and his squad set about building an impromptu enemy prisoner of war (EPW) holding area for prisoners in the enclosure.
Smith and sixteen other men used an Armored Combat Earthmover (similar to a bulldozer) to knock a hole in the south wall of the courtyard. On the north side, there was a metal gate that Smith assigned several men to guard. These men noticed fifty to 100 Iraqi troops who had taken positions in trenches just past the gate. Smith summoned a Bradley fighting vehicle to attack their position. Three nearby M113 Armored Personnel Carriers came to support the attack. An M113 was hit, possibly by a mortar, and all three crewmen were injured.
The Bradley, running low on ammunition and damaged, withdrew during a lull in the battle. Smith organized the evacuation of the injured M113 crewmen. However, behind the courtyard was a military aid station crowded with 100 combat casualties. To protect it from being overrun, Smith chose to fight on rather than withdraw with the wounded.
Meanwhile, some Iraqis had taken position in the tower overlooking the courtyard, just over the west wall. The Iraqis now had the Americans in the courtyard under an intense crossfire. Smith took command of the M113 and ordered a driver to position it so that he could attack both the tower and the trenches. He manned the M113's machine gun, going through three boxes of ammunition. A separate team, led by First Sergeant Tim Campbell attacked the tower from the rear, killing the Iraqis. As the battle ended, Smith's machine gun fell silent. His comrades found him slumped in the turret hatch. His armored vest was peppered with thirteen bullet holes, the vest's ceramic armor inserts, both front and back, cracked in numerous places. But the fatal shot, one of the last from the tower, had entered his neck and passed through the brain, killing SFC Smith.
At some point before the battle, Smith had written, but not sent, an email to his parents. In it, he wrote, "there are two ways to come home, stepping off the plane and being carried off the plane... it doesn't matter how I come home, because I am prepared to give all that I am to ensure that all my boys make it home."
For his actions during the battle, Sergeant First Class Smith was posthumously awarded the Medal of Honor. On April 4, 2005, exactly two years after he was killed, his eleven-year-old son David received the Medal of Honor from President George W. Bush. Additionally, for his actions in Iraq, he received the Purple Heart and the Bronze Star.
SFC Smith is survived by his wife Birgit, son David, and stepdaughter Jessica. Birgit is the sponsor of the first littoral combat ship, Freedom (LCS-01), and her initials are welded on the ship's keel.
For conspicuous gallantry and intrepidity at the risk of his life above and beyond the call of duty:
Sergeant First Class Paul R. Smith distinguished himself by acts of gallantry and intrepidity above and beyond the call of duty in action with an armed enemy near Baghdad International Airport, Baghdad, Iraq on 4 April 2003. On that day, Sergeant First Class Smith was engaged in the construction of a prisoner of war holding area when his Task Force was violently attacked by a company-sized enemy force. Realizing the vulnerability of over 100 soldiers, Sergeant First Class Smith quickly organized a hasty defense consisting of two platoons of soldiers, one Bradley Fighting Vehicle and three armored personnel carriers. As the fight developed, Sergeant First Class Smith braved hostile enemy fire to personally engage the enemy with hand grenades and anti-tank weapons, and organized the evacuation of three wounded soldiers from an armored personnel carrier struck by a rocket propelled grenade and a 60 mm mortar round. Fearing the enemy would overrun their defenses, Sergeant First Class Smith moved under withering enemy fire to man a .50 caliber machine gun mounted on a damaged armored personnel carrier. In total disregard for his own life, he maintained his exposed position in order to engage the attacking enemy force. During this action, he was mortally wounded. His courageous actions helped defeat the enemy attack, and resulted in as many as 50 enemy soldiers killed, while allowing the safe withdrawal of numerous wounded soldiers. Sergeant First Class Smith's extraordinary heroism and uncommon valor are in keeping with the highest traditions of the military service and reflect great credit upon himself, the Third Infantry Division 'Rock of the Marne,' and the United States Army.