HateDread said:
Haaaa... OK, if you're after 'classics' of the philosophy and the principles of war, then:
Clausewitz -
Vom Krieg, obvious choice and can be applied to any conflict, and generally holds true, even in fictional wars, weirdly...
Guderian -
Achtung Panzer &
Panzer Leader, for a good read on early tank warfare and a controversially original revolution of land warfare (though the latter is more a memoire than a critique)
Galland -
Die Ersten und die Letzten, which is one of the few memoires about a senior aviator which is less biased than most your apt to find
von Moltke the Elder -
Geschichte des Deutsch-Französischen Krieges von 1870?71, a pretty much day by day recollection of the Franco-Prussian war and is purely objective, not what you're after, maybe, but I'll recommend it anyway, since it demonstrates manoeuvre warfare (Bewegungskrieg) at its best and is still applicable in modern (conventional) warfare
Unfortunately, you're not really apt to find books from the 1950's onwards that represents the full capacity of a modern armed forces' strength in theatre, primarily because of the lack of conventional war in the west and the much greater influence of central government in the decisions of soldiers which dictates strategic thinking. So you're best off looking at WWII and 'upgrading the tech' as it were, because the Indo-Pakistani war(s) weren't that much better.
Apologies, post-1945 warfare doesn't interest me as much as you'd think... >_>