Many people think there's no more noble career choice for a U.S. citizen than serving in the U.S. military. Still, becoming a soldier is a decision that should not be taken lightly. Soldiers must go through training that is very tough—it tests recruits both physically and mentally. Those who make the cut may be thrust into dangerous situations in places far from home. Inside this guide, readers will see what it's really like to be a career soldier. Amazing photographs give readers an up-close perspective of one of the riskiest yet most fulfilling careers in the world.