ELI5: Explain Like I'm 5

Military doctrine

Military doctrine is like a set of rules or guidelines for how a military group should act in certain situations. The rules help the soldiers know how to act in different situations, such as during a war. Military doctrine can also be like a plan that explains what the military should do in specific cases. It helps the military figure out how to respond to different challenges, so they can be prepared and do the best they can to protect the people they are responsible for.