How is Herbert Spencer's theory for industrial and militant societies relevant in today's society?

I am currently doing on sociologist/philosopher Herbert Spencer. I came across his views on militant and industrial societies, and am trying to find h

I am currently doing on sociologist/philosopher Herbert Spencer. I came across his views on militant and industrial societies, and am trying to find how it is relevant today. Any type of help would be appreciated!

or:I am currently doing on sociologist/philosopher Herbert Spencer. I came across his views on militant and industrial societies, and am trying to find how it is relevant today. Any type of help would be appreciated!

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