The figures on the graph measure the relative ability of states to fight wars based on their military capacity (personnel and expenditures), energy consumption, and iron and steel production. Although necessarily approximate because most states did not keep detailed records of these factors in the early 1800s, the comparison is striking; Great Britain, for example, has a relatively large share (never less than 26.5 percent) even though it had a small army because it had higher levels of energy consumption and iron and steel production and greater financial capabilities.
Questions to Consider