“…In the course of our preparations for emergency situations, civil defense training founded on the principle of mutual assistance receives special emphasis. Organized defense can only be effective if the whole country is aware of the manner of warning and if the warning signal reaches everyone. …”

“…This was no different in the twentieth century, either: people took advantage of the advances in organic chemistry by using poisonous gases on the battlefields, for example, in the interest of delivering a swift and effective blow to the enemy. …”