Again, gets the message across but it could be more clear. Use the verb 'fail' instead of 'do'. "The war not only failed to..." Don't use the parentheses. Instead, just use the pronoun 'it'; our subject (the war) is pretty clear. "...but also it brought" No article 'the' necessary before 'society', 'disaster' or before 'human beings'. Also, 'the people' or 'humankind' are more elegant terms to use. Put them all together and you get: "The war not only failed to solve the problems of society, but it also brought disaster to humankind." Good luck!

It's wrong. Not only did the war not solve our problems, but it brought with it a lot of nasty things.

It sounds better if you say: "Not only did the war not solve society's problems, it brought disaster to human beings." :)