In the very next days, the U.S.A along with France will decide, whether they will fire their cruise missiles against Syria. As usual those great democracies put forward morale and human rights. Which is normal, as they each claim having a universal responsibility.
However, a basic principal of war is the payoff rule: how much will my country get back against the human, financial and political cost of a war ? The present situation in Syria is far from giving a clear and simple answer, for the following reasons: