so called roof knocking technique was also used if all air force identified buildings full of explosive and above all loud charges would be launched to evacuate the building
The so-called 'roof knocking' technique was also used: if, after all those warnings, the air force still identified buildings full of people, small explosive and, above all, loud, charges would be launched to quickly evacuate the buildings.
so-called 'roof knocking' technique was also used: if, all air force identified buildings full of explosive and, above all, loud, charges would be launched to evacuate the buildings.