The Swiss Guard, recognizable by its armor and colorful Renaissance-era uniforms, has been protecting the pontiff since 1506. That's when Pope Julius II, following in the footsteps of many European courts of the time, hired one of the Swiss mercenary forces for his protection. The Swiss Guard's role in Vatican City is strictly to protect the safety of the pope. Although the world's smallest standing army appears to be strictly ceremonial, its soldiers are extensively trained and highly skilled marksmen. And, yes, the force is entirely comprised of Swiss citizens.