My five:

1. On supplying war: Just in time inventory management does not work when you have no prior data on consumption of the “sinews” of war.

2. On paying for war: When there are limited sources of production and
competing demands for the products produced , do not expect the military to get a “sweet” pricing deal.

3. On waging war: Technology alone is not going to win too many battles.

4. On informed decisions: Just because decision makers have been given all the best information available to make good decisions, one cannot be sure that the decision makers will a.) use it and b.) not make a bad decision anyway.

5. On full spectrum operations: The day of the linear battlefield is dead.