Question

War the Worlds Solution is the title of my paper should there be an apostrophe in the word worlds? I think so but I just want to make sure I'm right.

Answer 1

Yes. I'd also insert a dash --

War -- the World's Solution

Answer 2

A colon would also work.

War: The World's Solution

Answer 3

Yes, you are correct. it is 'War: The World's Solution.' Great work. :)