Napoleon commanded an army of over 500,000 men. His soldiers fought with muskets, bayonets, pistols, and cannon. Ordering an army that big to march must have been a huge challenge. Just think about all of the food that everyone would need to eat!
Still, Napoleon was a very smart commander, and his army moved over 600 miles in 8 weeks, all walking. He finally got to Moravia in November. Everyday people, many of them poor, were forced to give the army food, money, and other supplies. Finally, the army reached the place that Napoleon wanted to fight.
The Battle of Austerlitz was long, one of the bloodiest in history. Napoleon's army took on the combined forces of Austria and Russia, which tried to break through and surround him. In the end, the French won a huge victory.
Today, people remember the wars every year on Napoleon's birthday. Some dress as French, Austrian, or Russian soldiers and re-enact the battle, which means act it out just like it happened (but without real weapons). Many Moravians have found artifacts from the armies, like pistols or clothing, in their backyard.