The war doctrine plays a very important role and also the motto of the war,i.e. whether you want to establish full control by evading everything and taking complete control over the enemy and also the political will of the governing body of the country, in case of a country like INDIA which lacks the political will for doing anything. If not for the political will and a proper war doctrine, we would have got back KASHMIR in the aftermath of the 1971 war.
The 1971 Indo-Pak war is a standing proof that INDIA lacked both in war doctrine and political will, because the governing body was not clear about what to do after we won the war and just gave away all the P.O.W. and gained nothing after winning the war and just lost many soldiers for nothing. A good example is the great pilot Mr.Shikon and many others like him. They simply sacrificed their lives for nothing as INDIA did not have a proper war doctrine and also the political will to gain control of what we had achieved in the war.