A General Question about ORBATs

[Marcello]

1970 to 2020 is simply ridiculous, it is a longer time even than WW2!

Not so ridicolous. Although the counter examples offered by Snipey don't serve well his point there is no shortage of wars which have lasted for decades. Think Angola 1975-1991/2002 (depending how you define the timeline) or Sri Lanka 1983-2009 (again depending how you define the timeline) for example.
The Iran Iraq war lasted eight years, two years longer than WW2. Generally however long wars are low intensity (unless you are in the middle of it). Nukes are one of the limits.