It is a very interesting article, but I'm a little horrified at the amount of effort going into military projects to kill more efficiently.
Yeah you might want to take a look at what's happening in Europe then. Because your options are "have an effective conventional military force, ideally enough to deter an invasion" and "have nuclear weapons and threaten Armageddon at the smallest of provocations" (which was correctly identified as impractical during the Cold War: would the US trade the Eastern Seaboard to protect Berlin? Fairly obviously no...)
Europe has nuclear arsenal so I really don't get your point.