What was the marching speed in ancient times?

The marching speed of the ancient army was different according to the enemy's resistance and our strategic needs. The standard of heavy infantry in Rome is to carry 23 kilograms and March 3 1 to 39 kilometers in 5 hours. Before Liu Che's time, when China people talked about the Sino-Hungarian border, they all said that the border was only 300 miles away from Chang 'an, and it could be reached by light bike in one day and one night. The western example is Hannibal's failure in the Battle of Zama. It is said that two people and two horses ran more than 200 kilometers a day and night. In order to win by surprise, the light cavalry may March quickly for a long time. But it can't last, which should be noted.

Because if the light cavalry moves quickly, it will inevitably leave behind the logistics team, heavy troops and all the people and things that can't move quickly, and the horse itself will be very tired. In this way, the combat effectiveness and endurance of the light cavalry itself will inevitably drop greatly. It can only be a surprise. If you can't win, you will fail. However, quick maneuvering can really bring great opportunities to the commander in chief.