Certainly Kalarippayattu is the oldest martial art in India and probably in the whole world. India is a vast country and the roots of the Vedic tradition go back tens of thousands of years. The knowledge that Lord Siva passed on to his disciples spread all over the sub continent.
In different parts of India people call the martial art in different names. Since kalari originated from the Samhara thandava - war dance of Lord Siva, you can safely say that Siva Shastra Vidya and Kalarippayattu are the same. Lord Hanuman is another immortal and he was trained in the art of warfare by Lord Siva.
Lord Siva can be considered as the source of knowledge in many of the Indian folk arts like bharatanatyam - classical dance and the exercises system called as Yoga along with the various martial systems present in different parts of India. Top 17. Now I see some "research work" being published by certain persons claiming that the word kalari is a Malayalam one and that available record suggest that ... more.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.