Deja Vu All Over: India vs Pakistan

It was 40+* years ago that India and Pakistan last fought a war,, but in my youth such conflicts, and the rumors and threats of conflicts, were a constant in international affairs. 

*  It turns out it's just 20 years, at least according to Wikipedia--there was a 1999 conflict in Kargil.  They count 4 wars, and innumerable confrontations and conflicts of a lesser nature.

It seems there are fewer such conflicts since the end of the Cold War--not sure there's any causal relationship but 1989 is a convenient date.  Obviously there's Iraq I and Iraq II and Agfhanistan forever but I buy Steven Pinker's thesis of a gradual decrease in violence over the ages.