Methods Used To Deliver Ordnance
There are three basic methods used to deliver ordnance onto targets in a strategic bombing campaign. The first is by gravity-dropping large numbers of iron bombs or "dumb bombs", using strategic bombers. The second is through the use of more precise ordnance, precision-guided munitions (so-called smart bombs); cruise missiles fall into this category, though they are not always air-launched. The third method involves the use of nuclear ordnance, either onto a battlefield in a method similar to carpet bombing, or onto a strategic target, as with iron bombs in WW II.
Although the deployment of nuclear weapons from aircraft falls into the category of strategic bombing, and likely represents the ultimate form of both strategic and terror bombing, the term strategic bombing is generally used in reference to the release of non-nuclear air-ground ordnance from strategic aircraft.
Area attack by multiple bombers is based upon detailed calculations of the intended Damage Expectancy or "DE" directed by the Air Tasking Order (ATO) used in a military strategy. To achieve a particular DE, planners select a bomb type based on that particular weapon's damage mechanism - blast/fragmentation or incendiary, for example. Planners then calculate the Single Sortie Probability of Damage (SSPD) and extrapolate from there, adding sorties until the probability of damage meets or exceeds the required DE.
As weapons have grown more precise, the need for mass formations dropping masses of bombs has decreased, and it is now possible for a single bomb to accomplish what in the past took many bombers. In fact, one B-52 can now drop a single bomb from many miles away that can be programmed to strike a target as small as a window or doorway from a chosen direction and at a preselected angle. This can focus the blast in a given direction and can dramatically reduce the risk of collateral damage to other buildings and consequent unintended civilian casualties.
Strategic bombing by multiple modern strategic bombers like the B-52 can be likened to an hour during the Somme bottled into a thirty-second time period. However, some believe this delivery method has been rather ineffective in attacking a nation's warmaking capability, due to the imprecise nature of the attack. Others cite the destruction of enemy infrastructure, resources expended on civil defense and physical protection of sites, and the reallocation of military resources away from the battlefield in order to staff response and air and ground antiaircraft assets as proof of its efficacy. In either case, the unintended mass civilian casualties, terror caused, and ethical questions raised draws adverse long-term attention to the morality of strategic bombing.
Carpet bombing, often confused with strategic bombing, is the use of strategic air assets for operational objectives in support of ground forces. Its use during Operation Cobra is the best-known example. Carpet bombing is viewed ambivalently by ground forces, due to the nigh-inevitable friendly casualties caused by bombers dropping their ordnance short of the aiming point, either through error or "bomb creep".
The use of "smart" weapons is preferred by some nations for two reasons. First, it can be less devastating. Due to the greater accuracy (the smaller CEP) of precision guided weapons, there is less risk of civilian casualties. The second reason is the more-focused damage associated with precision weapons. Strategic bombing can destroy an entire block, but miss the vital components of a factory. Precision weapons can attack precise components of designated targets, increasing the likelihood of a successful attack. However, the 'shock' value of precision bombing is less severe than of area bombing. Unless multiple precision weapons are used, an enemy may seek cover or disperse to different parts of the targeted area. Additionally, area bombing can have an initial significant psychological effect, as the bombing of cities early in World War II terrified their citizens.
Read more about this topic: Strategic Bombing
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