What factors differentiate 4th, 4.5th, 5th, and 6th gen jets? Fighter jet generations explained

Fighter jets play a crucial role in ensuring a country's national defence while allowing it to cope with any external aggression. The presence of fighter jets gives a nation air superiority, bolsters national defence, offers offensive capabilities, and helps in strategic power projection. If an air force is equipped with a good number of fighters with cutting-edge technology, it has a psychological impact on adversaries as well. Moreover, jets can also come in handy while undertaking civil operations, given the advanced sensors and speed of these assets. 

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