Gaza war story

I heard an interesting and telling Gaza war story today.

Our neighbors' gardener, like many Israelis, was called up for army reserve duty and was sent to Gaza. He and his platoon were patrolling in Gaza City when they observed something suspicious. Although the streets were generally deserted, a woman began approaching them holding the hand of a small child. Sensing that somethings was not right, they ordered her, in Arabic, to halt, and she did. Then they told her to raise her dress, which she also did, revealing a suicide belt! After consulting via radio with their commanding officers, they had no choice but to shoot her dead. By killing her before she could detonate herself, they saved the life of the child, although, very sadly, she was probably his mother. They examined the belt, and it definitely DID contain plenty of explosives. The child was turned over to the Red Cross.

The haunting and pressingly important question is: how do you fight an enemy that resorts to such shocking barbarity?