The French tried to set a trap at Dien Bien Phu. They put themselves into an untenable position to try and lure the Vietnamese out into the open to fight them. The Vietnamese instead sat back and systematically destroyed the defenses with artillery.
The lesson to be learned is to not put yourself into an untenable situation just in the hope that it will lure your enemy into making a similar mistake. They may not be as dumb as you colonialists always assume they are.
The French tried to set a trap at Dien Bien Phu. They put themselves into an untenable position to try and lure the Vietnamese out into the open to fight them. The Vietnamese instead sat back and systematically destroyed the defenses with artillery.
The lesson to be learned is to not put yourself into an untenable situation just in the hope that it will lure your enemy into making a similar mistake. They may not be as dumb as you colonialists always assume they are.