From battle armor to bubble gum, you might be surprised by what soldiers have carried into battleโand what they'll carry in future wars. In this look at the development of weaponsโfrom the Roman soldier's gladius to the M16 assault rifle to infrared scopes and biological weapons protectionโwe also discover the evolution of body armorโfrom knights to Kelvar-protected "Land Warriors". And we'll also find out what the "Future Warrior" will look like.