How to train physical fitness in the army?

5000-meter running (morning exercise), 5000-meter load running (carrying guns and other equipment), 5000-meter cross-country running, and turning back uphill running.

There is also a set meal called 4488 1200. As the name implies, there are two 400 meters, two 800 meters and one 1200 meters, all of which should be completed at the fastest speed.