War...What Is It Good For?

'Every gun that is made, every warship launched, every rocket fired signifies in the final sense, a theft from those who hunger and are not fed, those who are cold and are not clothed. This world in arms is not spending money alone. It is spending the sweat of its labourers, the genius of its scientists, the hopes of its children'  - Dwight D. Eisenhower

I don't know who wrote the definition of what exactly a war is but apparently it is an active conflict that has claimed more than 1,000 lives.
In the Book 'What Every Person Should Know About War', the author Chris Hedges has come up with some amazing statistics  which should shame us all, such as of the past 3,400 years, humans have been entirely at peace for 268 of them, or 8% of recorded human history.  
At least 108 million people were killed in wars in the twentieth century and estimates for the total number killed in wars throughout all of human history range from half a million to 1 billion.
The combined armed forces of the world includes 21.3 million people with China the largest with 2.4 million, the America with 1.4 million, India 1.3 million, North Korea 1 million, and Russia 900,000.
Of the 21.3 million military personnel, 97% are male.
The Worldwide military spending is estimated to have reached $1.7 trillion in 2017, the top five biggest spenders were the United States $610 billion, China $228 billion, Russia $69.4 billion, Saudi Arabia $67.6 billion and India $66.3 billion, which accounted for 60% of global military spending.
Since the second World War, America has spent $16.23 trillion on the military and its supporting manufacturing base employs 3.5% of the U.S. labour force. In the same period America has spent $1.70 trillion on it's nations health care.
Between 1900 and 1990, 43 million soldiers died in wars but during the same period, 62 million civilians were killed and in the wars of the 1990s, civilian deaths constituted between 75% and 90% of all war deaths with more than 2 million children killed.