World War I was the most embarrassing moment in the mankind era. Most cruel soldiers killed many innocent peoples and honorable leaders. It had been motivated by many evil leaders in the world. Most of people had been died because of viral diseases. After many years, now we realized that war was bad for our society and mankind. We stood against war and spread peace all over the world. Here, we can see lots of army men, battle field, died soldiers and so on. We had lost lots of good things despite of war.