All these three or four major wars took place during the time of the three Avatars who had come to establish dharma consistent with the dawn of a new age. Therefore these wars can very well be seen as the last ditch attempt for the forces of adharma to resist the new age being ushered by the Avatar. Therefore each war has a spiritual as well as physical turning point.
The spiritual turning point is when the forces of adharma took an extreme step that invited a strong recoil as well as a Divine Intervention. Such a point for the Ramayana war that led to the complete decimation of Ravan raj was indeed the abduction of Mata Sita. The physical turning point, though the actual war had not yet started, was Hanuman ji destroying the Ashok Vatika, killing Lankini and burning Lanka. It had a tremendous demoralizing effect that haunted the Rakshasa army taking away half their strength. Of course the celestial weapons given by Rishi Agastya and his occult spiritual help was another great factor. The final turning point was the conversion of Vibhisana and his choosing the path of dharma over family ties.
Similarly the downfall of the kuru clan was spiritually fixed when Draupadi was dragged into the court of Dhritrashtra. The next most important turning point was Arjuna choosing Sri Krishna as his charioteer and the Lord agreeing to the same. The final physical turning point was the death / sacrifice of Abhimanyu as it steeled the heart of Pandavas who were until then, soft pedaling with their cousins.
The two World Wars can be seen as one extending into the other just as the Mahabharata was the final culmination of all the battles and frictions that preceded it. The occult turning point was indeed Hitler’s invasion of France and the battle of Dunkirk. France of those days stood for all that was beautiful in Europe, culturally and intellectually so to say. The physical turning points were the Pearl Harbour and even more importantly the Battle of Stalingrad. Most important single factor was Sri Aurobindo and the Mother putting their occult spiritual force against Hitler.
Affectionately,
Alok Da