Yes. I'd also insert a dash --
War -- the World's Solution
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.
3 answers
A colon would also work.
War: The World's Solution
War: The World's Solution
Yes, you are correct. it is 'War: The World's Solution.' Great work. :)