Even in war , it is forbidden to attack hospitals , civilian or military . Abu Maryam was in the region when the attack took place and he tried his best to help the injured people from what remained of the hospital . Abu Maryam was very upset at what had happened . That same evening , the Commander - in - Chief appeared on National Television and proudly announced , " Today , we have successfully destroyed a terrorist base . No civilians were killed and no hospitals were hit . "

Give answer the following question using evidence from the above passage: Why is there anger at the combatants ?
They violated an unspoken rule .