Answer:
One of the main strategies that the Song empire used to stay in power was the use of an army with professional soldiers, well prepared and well paid.
Step-by-step explanation:
The Song Empire invested in an efficient military force to protect the dynasty from rebellions and riots that could harm or remove the dynasty from power.
For this, the Song empire invested in forming an army with strong and well-trained soldiers. It invested in the best and most technological training, so that soldiers were highly efficient, in addition to providing salary bins, to maintain soldiers' loyalty and effectiveness.