THERE IS a growing consensus that the United States can’t afford another war, or even a major armed humanitarian intervention. But in reality, the cost of war itself is not the critical issue. It is the nation building following many wars that drives up the costs.
For every war of the kind we are waging in Afghanistan, we could afford five hundred interventions of the type America carried out in Libya in 2011. The war in Libya cost the United States roughly $1 billion, according to the Department of Defense, and the war in Afghanistan so far has cost over $500 billion, according to the National Priorities Project.
If costs are measured in blood and not just money, the disparity is even greater, both in terms of our losses and the losses of all others involved. Particularly important in this context is the fact that nation building, foreign aid, imported democratization, Marshall Plans and counterinsurgency (COIN) with a major element of nation building are not only very costly but also highly prone to failure. Thus, they are best avoided.