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Numbers

.50 Caliber

The standard heavy, vehicle-mounted machine gun used by US forces since World War Two; AKA "Fifty cal," "the Fifty," "M-2," and "Ma Deuce."

5.56 Machine Gun Rounds

The diameter of bullets in millimeters used by US forces in all rifles and light machine guns; AKA "NATO rounds"; distinguished from Iraq's Soviet standard military which uses 7.62mm rounds in their weapons.

507 Maintenance

US Army unit that took a wrong turn into Nasariyah and was ambushed; NOTE: This is best known as the unit to which Jessica Lynch belonged, though our platoon will not learn of Lynch by name, or her status as the most famous U.S. prisoner of war, until episode three.

Glossary

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