Concurrently, during a military operation in World War II, following a German air raid on the Italian harbour of Bari, several hundred people were accidentally exposed to mustard gas, which had been transported there by the Allied forces to prepare for possible retaliation in the event of German use of chemical warfare.
Ao mesmo tempo, durante unha operación militar na Segunda Guerra Mundial, despois dun bombardeo alemán sobre o porto italiano de Bari, varios centos de persoas foron expostas accidentalmente ao gas mostaza, que fora transportado ata alí polas forzas Aliadas para prepararse para realizar unha posible represalia en caso de que os alemáns usasen armas químicas.