Final answer:
In ancient warfare, the SL, or Senior Leader, would be responsible for planning and coordinating the movements of the divisions and ensuring that they are properly trained and equipped.
Step-by-step explanation:
In ancient warfare, the role of the SL, or Senior Leader, would depend on the specific historical context. The SL could be a general or commander who oversees the overall strategy and gives orders to the team leaders. In this particular quote, the SL is most likely referring to the overall commander who is preparing the men along with the team leaders. The SL would be responsible for planning and coordinating the movements of the divisions and ensuring that they are properly trained and equipped.
The quote suggests a strategy of making forced marches, covering double the usual distance without halting day or night. This strategy would exhaust the soldiers and result in only a small fraction of the army reaching its destination. Therefore, the SL's role would be to make informed decisions about the best strategies and tactics to employ in order to achieve victory.
An example of a historical SL would be General George Washington during the American Revolutionary War. He would plan and coordinate the movements of his troops, provide guidance to his team leaders, and make strategic decisions to achieve victory against the British forces.