Fighters and bombers
Aircraft were first used in the First World War to spot enemy artillery positions. Fighter planes were invented soon afterwards, followed later in the war by the first bombers. During the Second World War, mass bombing of cities caused them to blaze like huge bonfires. In 1945, a single atom bomb dropped by the Allies on the Japanese city of Hiroshima killed or injured 130 000 people. Modern bombers and fighters are fitted with computer that navigate at supersonic speeds and calculate the positions of targets while on the move.

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