The Big Wars that Never Where. Technological Impact?

There where some big wars that never where during the 1900's. I'm thinking about the Sino-Soviet war, a violent crash between Italy and Germany over Austria in the 30's, maybe a South American war between Brazil and Argentina, another India-Pakistani war or a full scale war between India and China and so on.

But would any of those influence technology in a big way? Or does the idea of wars driving development fail in those cases? Is technological development during wartime a US and to some extent a Brittish speciality making up for a less martial society?
 
Wars produce technological development only when one side or the other is developing new military technology- i.e. it must have an arms industry and must not be playing catch-up with other powers.

Of the ones you mention, only Italy-Germany and Sino-Soviet War qualify. Italy-Germany gives developments similar to the first years of OTL WW2- so a complete switch to all-metal monoplanes, but no jets. Sino-Soviet really depends on when...
 
Sino-Soviet would really be a technological downgrade, except in the areas of cleaning up nuclear waste. Which is mostly the same about war between any two nuclear powers.
 
the chinese soviet border conflict actually produced the automatic granade launcher, as a precaution against chinese human wave tactics
this would newer go nuclear do, it was just a border dispute with a ideological conflict in the backround
at worse it would be one of those forgotten wars like the vietnam intervention in cambodia or again the chinese indian border war
 
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