Costs.

The article discusses the costs of establishing and maintaining a no-fly zone. Several important parameters are taken into account in estimating the costs of a no-fly zone including specific military tasks, geography of the adversary's country, and extent of the mission creep. A table presented shows the costs to the U.S. government of U.S. participation in a variety of air operations in the 1990s such as Operation Noble Anvil in Yugoslavia and Operation Southern Watch in Iraq.