In the discourse during introduction or in the first chapter, Swami Advayanandaji spoke about the logicality of Bhagavan's Gita talk to Arjuna in the war field!
I don't exactly remember What Swamiji said about it!
One of our study group member asked this question, "is it not impractical to have a long dialogue of Gita in the war field, in the middle of two armies?"
I request an answer to this. I don't have enough time to search for it in Swamiji's discourse.