While positional defence cannot be regarded as important in the first stage because of the prevailing circumstances,positional attack will become quite important in the third stage because of the changed conditions and the requirements of the task.

• 如果说，第一阶段的阵地防御，由于当时的条件，不能看作重要的，那末，第三阶段的阵地攻击，由于条件的改变和任务的需要，将变成颇为重要的。