Unfortunately our Indian Armed Forces are a mix of men from all over the vast country. Nationalism is the only thing that has to be pumped into their veins. Any other concepts or criteria allowed into their lives will produce these back stabbers. Enemy looks around for such people and buys them...ultimately money hunger , a third world malady takes precedence.....a tricky situation to run the fighting forces.
The motto should be - WE ARE ONE AND WE WILL DIE FOR OUR COUNTRY !
Not color , caste, creed, religion, food habits. They are to be modified and unified.
Forces of West, East, Northern parts of the globe are more single branded unlike ours.