Clausewitz emphasized in "On War": "Spiritual factors occupy the most important position in war. Spiritual power permeates all military fields. " It can be said that the combat effectiveness of the army is composed of two elements: the first is material, the second is spirit, and the spiritual element is in a key position. This artificial factor in the army is the fighting spirit. The fighting spirit of the army directly affects the soldiers' behavior and war situation, and is an important factor to determine the outcome of the war. As the world's number one military power, the United States also attaches great importance to the cultivation of fighting spirit and has formed a series of distinctive practices.

1, pay attention to the spiritual education of the combination of colleges and troops.

2, pay attention to the combination of military and social environment edification.

3. Pay attention to the benefits of combining material and spiritual stimulation.

4. Pay attention to the combination of peacetime and wartime.