In close air support, air strikes are usually controlled by trained observers on the ground for coordination with ground troops and intelligence in a manner derived from artillery tactics.
History
Beginnings
The first large scale air raid occurred during World War I in 1915, when London was bombed by 15 German Zeppelin dirigibles at night. Since the residents of London, and many of its defenders, were asleep, a loud warning system for air raids made sense, leading to the creation of the air raid siren.[2]
World War II
It was not until World War II that the Oxford English Dictionary first records usage of the term "air strike",[3] which remained two separate words for some time thereafter. The Second World War also saw the first development of precision-guided munitions, which were fielded successfully by the Germans, and contributed to the modern sense of air "strike", a precision targeted attack as opposed to a strafing run or area bombing.
The importance of precision targeting cannot be overstated: by some statistics, over a hundred raids were necessary to destroy a point target in World War 2; by the Persian Gulf War, the U.S. Air Force was able to release to media precise footage of television- or radar-guided bombs directly hitting the target without significant collateral damage (using, for example, the LANTIRN pod). Paul Fussell noted in his seminal work The Great War and Modern Memory the popular 20th century tendency to assume an errant bomb hitting a church, for example, was completely deliberate and reflective of the inherent evil of the enemy; over time, expectations for reduced collateral damage have increased to the point that developed countries engaging in war against less technologically advanced countries approach near-zero in terms of such damage.
After World War II
In the Malayan Emergency of the 1950s, British and Commonwealth Avro Lincoln heavy bombers, de Havilland Vampire fighter jets, Supermarine Spitfires, Bristol Brigands, de Havilland Mosquitos, and a host of other British aircraft were used in Malaya in operations against guerillas. However, the humid climate played havoc with the Mosquito's wooden airframe, and they were soon deployed elsewhere. This period also marked the last combat deployment of British Spitfires.
Today, airstrike terminology has extended to the concept of the strike aircraft, what earlier generations of military aviators referred to as light bombers or attack aircraft. With the near-complete air supremacy enjoyed by developed nations in undeveloped regions, fighter jets can often be modified to add strike capability in a manner less practicable in earlier generations.
Airstrikes can be carried out for strategic purposes outside of general warfare. Operation Opera was a single eight-ship Israeli airstrike against the Iraqi Osirak nuclear reactor, criticized by world opinion but not leading to a general outbreak of war. Such an example of the preventive strike has created new questions for international law.