Just as in 1914, when Durnovo referred to “presence of abundant combustible material in Europe,” there is any number of global flashpoints that could turn Mattis’s “great power competition” into a major conflagration that probably was not desired by anyone. However, if the worst happens, and the lamps go out again – maybe this time forever – Americans will not again be immune from the consequences as we were in the wars of the 20th century. The remainder of our lives, however brief, might turn out very differently from what we had anticipated.