Chemical & Biological Warfare Ever since the beginning of time people have used tools, which were later called weapons. People have used weapons to defend his or her life, family, property, prosperity, country, and even his honor. Over the years weapons have improved greatly and people are still trying to make them even better. In earlier times when man started using weapons they were made of stones, sticks, fire, or whatever was available to them. Now, …showed first 75 words of 922 total…

…showed last 75 words of 922 total…