1. It was the first modern industrial was which involved industrial nat
2. Machine guns, tanks, aircraft, chemical weapons etc are used on
a massive scale.
3. Unthinkable death and destruction.
4. Most of the people killed and injured were man of working age.
5. Declined the household income.
6. Men were forced to join in the war.
7. Women slapped into undertake jobs which they were not used to.